diff --git a/lerna.json b/lerna.json
index a77a16a24e..a50794e91e 100644
--- a/lerna.json
+++ b/lerna.json
@@ -1,5 +1,5 @@
 {
-  "version": "2.21.3",
+  "version": "2.21.4",
   "npmClient": "yarn",
   "packages": [
     "packages/*",
diff --git a/packages/backend-core/src/cache/base/index.ts b/packages/backend-core/src/cache/base/index.ts
index 264984c6a5..74da4fe0d2 100644
--- a/packages/backend-core/src/cache/base/index.ts
+++ b/packages/backend-core/src/cache/base/index.ts
@@ -23,6 +23,18 @@ export default class BaseCache {
     return client.keys(pattern)
   }
 
+  async exists(key: string, opts = { useTenancy: true }) {
+    key = opts.useTenancy ? generateTenantKey(key) : key
+    const client = await this.getClient()
+    return client.exists(key)
+  }
+
+  async scan(key: string, opts = { useTenancy: true }) {
+    key = opts.useTenancy ? generateTenantKey(key) : key
+    const client = await this.getClient()
+    return client.scan(key)
+  }
+
   /**
    * Read only from the cache.
    */
@@ -32,6 +44,15 @@ export default class BaseCache {
     return client.get(key)
   }
 
+  /**
+   * Read only from the cache.
+   */
+  async bulkGet<T>(keys: string[], opts = { useTenancy: true }) {
+    keys = opts.useTenancy ? keys.map(key => generateTenantKey(key)) : keys
+    const client = await this.getClient()
+    return client.bulkGet<T>(keys)
+  }
+
   /**
    * Write to the cache.
    */
@@ -46,6 +67,25 @@ export default class BaseCache {
     await client.store(key, value, ttl)
   }
 
+  /**
+   * Bulk write to the cache.
+   */
+  async bulkStore(
+    data: Record<string, any>,
+    ttl: number | null = null,
+    opts = { useTenancy: true }
+  ) {
+    if (opts.useTenancy) {
+      data = Object.entries(data).reduce((acc, [key, value]) => {
+        acc[generateTenantKey(key)] = value
+        return acc
+      }, {} as Record<string, any>)
+    }
+
+    const client = await this.getClient()
+    await client.bulkStore(data, ttl)
+  }
+
   /**
    * Remove from cache.
    */
@@ -55,15 +95,24 @@ export default class BaseCache {
     return client.delete(key)
   }
 
+  /**
+   * Remove from cache.
+   */
+  async bulkDelete(keys: string[], opts = { useTenancy: true }) {
+    keys = opts.useTenancy ? keys.map(key => generateTenantKey(key)) : keys
+    const client = await this.getClient()
+    return client.bulkDelete(keys)
+  }
+
   /**
    * Read from the cache. Write to the cache if not exists.
    */
-  async withCache(
+  async withCache<T>(
     key: string,
-    ttl: number,
-    fetchFn: any,
+    ttl: number | null = null,
+    fetchFn: () => Promise<T> | T,
     opts = { useTenancy: true }
-  ) {
+  ): Promise<T> {
     const cachedValue = await this.get(key, opts)
     if (cachedValue) {
       return cachedValue
@@ -89,4 +138,13 @@ export default class BaseCache {
       throw err
     }
   }
+
+  /**
+   * Delete the entry if the provided value matches the stored one.
+   */
+  async deleteIfValue(key: string, value: any, opts = { useTenancy: true }) {
+    key = opts.useTenancy ? generateTenantKey(key) : key
+    const client = await this.getClient()
+    await client.deleteIfValue(key, value)
+  }
 }
diff --git a/packages/backend-core/src/cache/docWritethrough.ts b/packages/backend-core/src/cache/docWritethrough.ts
new file mode 100644
index 0000000000..51018b2317
--- /dev/null
+++ b/packages/backend-core/src/cache/docWritethrough.ts
@@ -0,0 +1,86 @@
+import { AnyDocument, Database } from "@budibase/types"
+
+import { JobQueue, createQueue } from "../queue"
+import * as dbUtils from "../db"
+
+interface ProcessDocMessage {
+  dbName: string
+  docId: string
+  data: Record<string, any>
+}
+
+const PERSIST_MAX_ATTEMPTS = 100
+
+export const docWritethroughProcessorQueue = createQueue<ProcessDocMessage>(
+  JobQueue.DOC_WRITETHROUGH_QUEUE,
+  {
+    jobOptions: {
+      attempts: PERSIST_MAX_ATTEMPTS,
+    },
+  }
+)
+
+class DocWritethroughProcessor {
+  init() {
+    docWritethroughProcessorQueue.process(async message => {
+      try {
+        await this.persistToDb(message.data)
+      } catch (err: any) {
+        if (err.status === 409) {
+          // If we get a 409, it means that another job updated it meanwhile. We want to retry it to persist it again.
+          throw new Error(
+            `Conflict persisting message ${message.id}. Attempt ${message.attemptsMade}`
+          )
+        }
+
+        throw err
+      }
+    })
+    return this
+  }
+
+  private async persistToDb({
+    dbName,
+    docId,
+    data,
+  }: {
+    dbName: string
+    docId: string
+    data: Record<string, any>
+  }) {
+    const db = dbUtils.getDB(dbName)
+    let doc: AnyDocument | undefined
+    try {
+      doc = await db.get(docId)
+    } catch {
+      doc = { _id: docId }
+    }
+
+    doc = { ...doc, ...data }
+    await db.put(doc)
+  }
+}
+
+export const processor = new DocWritethroughProcessor().init()
+
+export class DocWritethrough {
+  private db: Database
+  private _docId: string
+
+  constructor(db: Database, docId: string) {
+    this.db = db
+    this._docId = docId
+  }
+
+  get docId() {
+    return this._docId
+  }
+
+  async patch(data: Record<string, any>) {
+    await docWritethroughProcessorQueue.add({
+      dbName: this.db.name,
+      docId: this.docId,
+      data,
+    })
+  }
+}
diff --git a/packages/backend-core/src/cache/generic.ts b/packages/backend-core/src/cache/generic.ts
index 3ac323a8d4..2d6d8b9472 100644
--- a/packages/backend-core/src/cache/generic.ts
+++ b/packages/backend-core/src/cache/generic.ts
@@ -26,7 +26,8 @@ export const store = (...args: Parameters<typeof GENERIC.store>) =>
   GENERIC.store(...args)
 export const destroy = (...args: Parameters<typeof GENERIC.delete>) =>
   GENERIC.delete(...args)
-export const withCache = (...args: Parameters<typeof GENERIC.withCache>) =>
-  GENERIC.withCache(...args)
+export const withCache = <T>(
+  ...args: Parameters<typeof GENERIC.withCache<T>>
+) => GENERIC.withCache(...args)
 export const bustCache = (...args: Parameters<typeof GENERIC.bustCache>) =>
   GENERIC.bustCache(...args)
diff --git a/packages/backend-core/src/cache/index.ts b/packages/backend-core/src/cache/index.ts
index 4fa986e4e2..3b25108634 100644
--- a/packages/backend-core/src/cache/index.ts
+++ b/packages/backend-core/src/cache/index.ts
@@ -5,3 +5,4 @@ export * as writethrough from "./writethrough"
 export * as invite from "./invite"
 export * as passwordReset from "./passwordReset"
 export * from "./generic"
+export * as docWritethrough from "./docWritethrough"
diff --git a/packages/backend-core/src/cache/tests/docWritethrough.spec.ts b/packages/backend-core/src/cache/tests/docWritethrough.spec.ts
new file mode 100644
index 0000000000..d90c83afd3
--- /dev/null
+++ b/packages/backend-core/src/cache/tests/docWritethrough.spec.ts
@@ -0,0 +1,288 @@
+import tk from "timekeeper"
+
+import _ from "lodash"
+import { DBTestConfiguration, generator, structures } from "../../../tests"
+import { getDB } from "../../db"
+
+import {
+  DocWritethrough,
+  docWritethroughProcessorQueue,
+} from "../docWritethrough"
+
+import InMemoryQueue from "../../queue/inMemoryQueue"
+
+const initialTime = Date.now()
+
+async function waitForQueueCompletion() {
+  const queue: InMemoryQueue = docWritethroughProcessorQueue as never
+  await queue.waitForCompletion()
+}
+
+describe("docWritethrough", () => {
+  const config = new DBTestConfiguration()
+
+  const db = getDB(structures.db.id())
+  let documentId: string
+  let docWritethrough: DocWritethrough
+
+  describe("patch", () => {
+    function generatePatchObject(fieldCount: number) {
+      const keys = generator.unique(() => generator.word(), fieldCount)
+      return keys.reduce((acc, c) => {
+        acc[c] = generator.word()
+        return acc
+      }, {} as Record<string, any>)
+    }
+
+    beforeEach(async () => {
+      jest.clearAllMocks()
+      documentId = structures.uuid()
+      docWritethrough = new DocWritethrough(db, documentId)
+    })
+
+    it("patching will not persist until the messages are persisted", async () => {
+      await config.doInTenant(async () => {
+        await docWritethrough.patch(generatePatchObject(2))
+        await docWritethrough.patch(generatePatchObject(2))
+
+        expect(await db.exists(documentId)).toBe(false)
+      })
+    })
+
+    it("patching will persist when the messages are persisted", async () => {
+      await config.doInTenant(async () => {
+        const patch1 = generatePatchObject(2)
+        const patch2 = generatePatchObject(2)
+        await docWritethrough.patch(patch1)
+        await docWritethrough.patch(patch2)
+
+        await waitForQueueCompletion()
+
+        // This will not be persisted
+        const patch3 = generatePatchObject(3)
+        await docWritethrough.patch(patch3)
+
+        expect(await db.get(documentId)).toEqual({
+          _id: documentId,
+          ...patch1,
+          ...patch2,
+          _rev: expect.stringMatching(/2-.+/),
+          createdAt: new Date(initialTime).toISOString(),
+          updatedAt: new Date(initialTime).toISOString(),
+        })
+      })
+    })
+
+    it("patching will persist keeping the previous data", async () => {
+      await config.doInTenant(async () => {
+        const patch1 = generatePatchObject(2)
+        const patch2 = generatePatchObject(2)
+        await docWritethrough.patch(patch1)
+        await docWritethrough.patch(patch2)
+
+        await waitForQueueCompletion()
+
+        const patch3 = generatePatchObject(3)
+        await docWritethrough.patch(patch3)
+
+        await waitForQueueCompletion()
+
+        expect(await db.get(documentId)).toEqual(
+          expect.objectContaining({
+            _id: documentId,
+            ...patch1,
+            ...patch2,
+            ...patch3,
+          })
+        )
+      })
+    })
+
+    it("date audit fields are set correctly when persisting", async () => {
+      await config.doInTenant(async () => {
+        const patch1 = generatePatchObject(2)
+        const patch2 = generatePatchObject(2)
+        await docWritethrough.patch(patch1)
+        const date1 = new Date()
+        await waitForQueueCompletion()
+        await docWritethrough.patch(patch2)
+
+        tk.travel(Date.now() + 100)
+        const date2 = new Date()
+        await waitForQueueCompletion()
+
+        expect(date1).not.toEqual(date2)
+        expect(await db.get(documentId)).toEqual(
+          expect.objectContaining({
+            createdAt: date1.toISOString(),
+            updatedAt: date2.toISOString(),
+          })
+        )
+      })
+    })
+
+    it("concurrent patches will override keys", async () => {
+      await config.doInTenant(async () => {
+        const patch1 = generatePatchObject(2)
+        await docWritethrough.patch(patch1)
+        await waitForQueueCompletion()
+        const patch2 = generatePatchObject(1)
+        await docWritethrough.patch(patch2)
+
+        const keyToOverride = _.sample(Object.keys(patch1))!
+        expect(await db.get(documentId)).toEqual(
+          expect.objectContaining({
+            [keyToOverride]: patch1[keyToOverride],
+          })
+        )
+
+        await waitForQueueCompletion()
+
+        const patch3 = {
+          ...generatePatchObject(3),
+          [keyToOverride]: generator.word(),
+        }
+        await docWritethrough.patch(patch3)
+        await waitForQueueCompletion()
+
+        expect(await db.get(documentId)).toEqual(
+          expect.objectContaining({
+            ...patch1,
+            ...patch2,
+            ...patch3,
+          })
+        )
+      })
+    })
+
+    it("concurrent patches to different docWritethrough will not pollute each other", async () => {
+      await config.doInTenant(async () => {
+        const secondDocWritethrough = new DocWritethrough(
+          db,
+          structures.db.id()
+        )
+
+        const doc1Patch = generatePatchObject(2)
+        await docWritethrough.patch(doc1Patch)
+        const doc2Patch = generatePatchObject(1)
+        await secondDocWritethrough.patch(doc2Patch)
+
+        await waitForQueueCompletion()
+
+        const doc1Patch2 = generatePatchObject(3)
+        await docWritethrough.patch(doc1Patch2)
+        const doc2Patch2 = generatePatchObject(3)
+        await secondDocWritethrough.patch(doc2Patch2)
+        await waitForQueueCompletion()
+
+        expect(await db.get(docWritethrough.docId)).toEqual(
+          expect.objectContaining({
+            ...doc1Patch,
+            ...doc1Patch2,
+          })
+        )
+
+        expect(await db.get(secondDocWritethrough.docId)).toEqual(
+          expect.objectContaining({
+            ...doc2Patch,
+            ...doc2Patch2,
+          })
+        )
+      })
+    })
+
+    it("cached values are persisted only once", async () => {
+      await config.doInTenant(async () => {
+        const initialPatch = generatePatchObject(5)
+
+        await docWritethrough.patch(initialPatch)
+        await waitForQueueCompletion()
+
+        expect(await db.get(documentId)).toEqual(
+          expect.objectContaining(initialPatch)
+        )
+
+        await db.remove(await db.get(documentId))
+
+        await waitForQueueCompletion()
+        const extraPatch = generatePatchObject(5)
+        await docWritethrough.patch(extraPatch)
+        await waitForQueueCompletion()
+
+        expect(await db.get(documentId)).toEqual(
+          expect.objectContaining(extraPatch)
+        )
+        expect(await db.get(documentId)).not.toEqual(
+          expect.objectContaining(initialPatch)
+        )
+      })
+    })
+
+    it("concurrent calls will not cause conflicts", async () => {
+      async function parallelPatch(count: number) {
+        const patches = Array.from({ length: count }).map(() =>
+          generatePatchObject(1)
+        )
+        await Promise.all(patches.map(p => docWritethrough.patch(p)))
+
+        return patches.reduce((acc, c) => {
+          acc = { ...acc, ...c }
+          return acc
+        }, {})
+      }
+      const queueMessageSpy = jest.spyOn(docWritethroughProcessorQueue, "add")
+
+      await config.doInTenant(async () => {
+        let patches = await parallelPatch(5)
+        expect(queueMessageSpy).toBeCalledTimes(5)
+
+        await waitForQueueCompletion()
+        expect(await db.get(documentId)).toEqual(
+          expect.objectContaining(patches)
+        )
+
+        patches = { ...patches, ...(await parallelPatch(40)) }
+        expect(queueMessageSpy).toBeCalledTimes(45)
+
+        await waitForQueueCompletion()
+        expect(await db.get(documentId)).toEqual(
+          expect.objectContaining(patches)
+        )
+
+        patches = { ...patches, ...(await parallelPatch(10)) }
+        expect(queueMessageSpy).toBeCalledTimes(55)
+
+        await waitForQueueCompletion()
+        expect(await db.get(documentId)).toEqual(
+          expect.objectContaining(patches)
+        )
+      })
+    })
+
+    // This is not yet supported
+    it.skip("patches will execute in order", async () => {
+      let incrementalValue = 0
+      const keyToOverride = generator.word()
+      async function incrementalPatches(count: number) {
+        for (let i = 0; i < count; i++) {
+          await docWritethrough.patch({ [keyToOverride]: incrementalValue++ })
+        }
+      }
+
+      await config.doInTenant(async () => {
+        await incrementalPatches(5)
+
+        await waitForQueueCompletion()
+        expect(await db.get(documentId)).toEqual(
+          expect.objectContaining({ [keyToOverride]: 5 })
+        )
+
+        await incrementalPatches(40)
+        await waitForQueueCompletion()
+        expect(await db.get(documentId)).toEqual(
+          expect.objectContaining({ [keyToOverride]: 45 })
+        )
+      })
+    })
+  })
+})
diff --git a/packages/backend-core/src/constants/db.ts b/packages/backend-core/src/constants/db.ts
index ac00483021..f4caac502e 100644
--- a/packages/backend-core/src/constants/db.ts
+++ b/packages/backend-core/src/constants/db.ts
@@ -57,6 +57,9 @@ export const StaticDatabases = {
   AUDIT_LOGS: {
     name: "audit-logs",
   },
+  SCIM_LOGS: {
+    name: "scim-logs",
+  },
 }
 
 export const APP_PREFIX = prefixed(DocumentType.APP)
diff --git a/packages/backend-core/src/context/mainContext.ts b/packages/backend-core/src/context/mainContext.ts
index 36fd5dcb48..ae86695168 100644
--- a/packages/backend-core/src/context/mainContext.ts
+++ b/packages/backend-core/src/context/mainContext.ts
@@ -35,6 +35,17 @@ export function getAuditLogDBName(tenantId?: string) {
   }
 }
 
+export function getScimDBName(tenantId?: string) {
+  if (!tenantId) {
+    tenantId = getTenantId()
+  }
+  if (tenantId === DEFAULT_TENANT_ID) {
+    return StaticDatabases.SCIM_LOGS.name
+  } else {
+    return `${tenantId}${SEPARATOR}${StaticDatabases.SCIM_LOGS.name}`
+  }
+}
+
 export function baseGlobalDBName(tenantId: string | undefined | null) {
   if (!tenantId || tenantId === DEFAULT_TENANT_ID) {
     return StaticDatabases.GLOBAL.name
diff --git a/packages/backend-core/src/db/couch/DatabaseImpl.ts b/packages/backend-core/src/db/couch/DatabaseImpl.ts
index 7e7c997cbe..416313f520 100644
--- a/packages/backend-core/src/db/couch/DatabaseImpl.ts
+++ b/packages/backend-core/src/db/couch/DatabaseImpl.ts
@@ -70,7 +70,15 @@ export class DatabaseImpl implements Database {
     DatabaseImpl.nano = buildNano(couchInfo)
   }
 
-  async exists() {
+  exists(docId?: string) {
+    if (docId === undefined) {
+      return this.dbExists()
+    }
+
+    return this.docExists(docId)
+  }
+
+  private async dbExists() {
     const response = await directCouchUrlCall({
       url: `${this.couchInfo.url}/${this.name}`,
       method: "HEAD",
@@ -79,6 +87,15 @@ export class DatabaseImpl implements Database {
     return response.status === 200
   }
 
+  private async docExists(id: string): Promise<boolean> {
+    try {
+      await this.performCall(db => () => db.head(id))
+      return true
+    } catch {
+      return false
+    }
+  }
+
   private nano() {
     return this.instanceNano || DatabaseImpl.nano
   }
diff --git a/packages/backend-core/src/db/instrumentation.ts b/packages/backend-core/src/db/instrumentation.ts
index 03010d4c92..795f30d7cd 100644
--- a/packages/backend-core/src/db/instrumentation.ts
+++ b/packages/backend-core/src/db/instrumentation.ts
@@ -24,9 +24,12 @@ export class DDInstrumentedDatabase implements Database {
     return this.db.name
   }
 
-  exists(): Promise<boolean> {
+  exists(docId?: string): Promise<boolean> {
     return tracer.trace("db.exists", span => {
-      span?.addTags({ db_name: this.name })
+      span?.addTags({ db_name: this.name, doc_id: docId })
+      if (docId) {
+        return this.db.exists(docId)
+      }
       return this.db.exists()
     })
   }
diff --git a/packages/backend-core/src/db/tests/DatabaseImpl.spec.ts b/packages/backend-core/src/db/tests/DatabaseImpl.spec.ts
new file mode 100644
index 0000000000..586f13f417
--- /dev/null
+++ b/packages/backend-core/src/db/tests/DatabaseImpl.spec.ts
@@ -0,0 +1,55 @@
+import _ from "lodash"
+import { AnyDocument } from "@budibase/types"
+import { generator } from "../../../tests"
+import { DatabaseImpl } from "../couch"
+import { newid } from "../../utils"
+
+describe("DatabaseImpl", () => {
+  const database = new DatabaseImpl(generator.word())
+  const documents: AnyDocument[] = []
+
+  beforeAll(async () => {
+    const docsToCreate = Array.from({ length: 10 }).map(() => ({
+      _id: newid(),
+    }))
+    const createdDocs = await database.bulkDocs(docsToCreate)
+
+    documents.push(...createdDocs.map((x: any) => ({ _id: x.id, _rev: x.rev })))
+  })
+
+  describe("document exists", () => {
+    it("can check existing docs by id", async () => {
+      const existingDoc = _.sample(documents)
+      const result = await database.exists(existingDoc!._id!)
+
+      expect(result).toBe(true)
+    })
+
+    it("can check non existing docs by id", async () => {
+      const result = await database.exists(newid())
+
+      expect(result).toBe(false)
+    })
+
+    it("can check an existing doc by id multiple times", async () => {
+      const existingDoc = _.sample(documents)
+      const id = existingDoc!._id!
+
+      const results = []
+      results.push(await database.exists(id))
+      results.push(await database.exists(id))
+      results.push(await database.exists(id))
+
+      expect(results).toEqual([true, true, true])
+    })
+
+    it("returns false after the doc is deleted", async () => {
+      const existingDoc = _.sample(documents)
+      const id = existingDoc!._id!
+      expect(await database.exists(id)).toBe(true)
+
+      await database.remove(existingDoc!)
+      expect(await database.exists(id)).toBe(false)
+    })
+  })
+})
diff --git a/packages/backend-core/src/environment.ts b/packages/backend-core/src/environment.ts
index b3179cbeea..2da2a77d67 100644
--- a/packages/backend-core/src/environment.ts
+++ b/packages/backend-core/src/environment.ts
@@ -186,6 +186,7 @@ const environment = {
     environment[key] = value
   },
   ROLLING_LOG_MAX_SIZE: process.env.ROLLING_LOG_MAX_SIZE || "10M",
+  DISABLE_SCIM_CALLS: process.env.DISABLE_SCIM_CALLS,
 }
 
 // clean up any environment variable edge cases
diff --git a/packages/backend-core/src/queue/constants.ts b/packages/backend-core/src/queue/constants.ts
index eb4f21aced..a095c6c769 100644
--- a/packages/backend-core/src/queue/constants.ts
+++ b/packages/backend-core/src/queue/constants.ts
@@ -4,4 +4,5 @@ export enum JobQueue {
   AUDIT_LOG = "auditLogQueue",
   SYSTEM_EVENT_QUEUE = "systemEventQueue",
   APP_MIGRATION = "appMigration",
+  DOC_WRITETHROUGH_QUEUE = "docWritethroughQueue",
 }
diff --git a/packages/backend-core/src/queue/inMemoryQueue.ts b/packages/backend-core/src/queue/inMemoryQueue.ts
index c05bbffbe9..afb5592562 100644
--- a/packages/backend-core/src/queue/inMemoryQueue.ts
+++ b/packages/backend-core/src/queue/inMemoryQueue.ts
@@ -1,5 +1,14 @@
 import events from "events"
-import { timeout } from "../utils"
+import { newid, timeout } from "../utils"
+import { Queue, QueueOptions, JobOptions } from "./queue"
+
+interface JobMessage {
+  id: string
+  timestamp: number
+  queue: string
+  data: any
+  opts?: JobOptions
+}
 
 /**
  * Bull works with a Job wrapper around all messages that contains a lot more information about
@@ -10,12 +19,13 @@ import { timeout } from "../utils"
  * @returns A new job which can now be put onto the queue, this is mostly an
  * internal structure so that an in memory queue can be easily swapped for a Bull queue.
  */
-function newJob(queue: string, message: any) {
+function newJob(queue: string, message: any, opts?: JobOptions): JobMessage {
   return {
+    id: newid(),
     timestamp: Date.now(),
     queue: queue,
     data: message,
-    opts: {},
+    opts,
   }
 }
 
@@ -24,26 +34,29 @@ function newJob(queue: string, message: any) {
  * It is relatively simple, using an event emitter internally to register when messages are available
  * to the consumers - in can support many inputs and many consumers.
  */
-class InMemoryQueue {
+class InMemoryQueue implements Partial<Queue> {
   _name: string
-  _opts?: any
-  _messages: any[]
+  _opts?: QueueOptions
+  _messages: JobMessage[]
+  _queuedJobIds: Set<string>
   _emitter: EventEmitter
   _runCount: number
   _addCount: number
+
   /**
    * The constructor the queue, exactly the same as that of Bulls.
    * @param name The name of the queue which is being configured.
    * @param opts This is not used by the in memory queue as there is no real use
    * case when in memory, but is the same API as Bull
    */
-  constructor(name: string, opts?: any) {
+  constructor(name: string, opts?: QueueOptions) {
     this._name = name
     this._opts = opts
     this._messages = []
     this._emitter = new events.EventEmitter()
     this._runCount = 0
     this._addCount = 0
+    this._queuedJobIds = new Set<string>()
   }
 
   /**
@@ -55,22 +68,42 @@ class InMemoryQueue {
    * note this is incredibly limited compared to Bull as in reality the Job would contain
    * a lot more information about the queue and current status of Bull cluster.
    */
-  process(func: any) {
+  async process(func: any) {
     this._emitter.on("message", async () => {
       if (this._messages.length <= 0) {
         return
       }
       let msg = this._messages.shift()
+
       let resp = func(msg)
+
+      async function retryFunc(fnc: any) {
+        try {
+          await fnc
+        } catch (e: any) {
+          await new Promise<void>(r => setTimeout(() => r(), 50))
+
+          await retryFunc(func(msg))
+        }
+      }
+
       if (resp.then != null) {
-        await resp
+        try {
+          await retryFunc(resp)
+        } catch (e: any) {
+          console.error(e)
+        }
       }
       this._runCount++
+      const jobId = msg?.opts?.jobId?.toString()
+      if (jobId && msg?.opts?.removeOnComplete) {
+        this._queuedJobIds.delete(jobId)
+      }
     })
   }
 
   async isReady() {
-    return true
+    return this as any
   }
 
   // simply puts a message to the queue and emits to the queue for processing
@@ -83,27 +116,45 @@ class InMemoryQueue {
    * @param repeat serves no purpose for the import queue.
    */
   // eslint-disable-next-line no-unused-vars
-  add(msg: any, repeat: boolean) {
-    if (typeof msg !== "object") {
+  async add(data: any, opts?: JobOptions) {
+    const jobId = opts?.jobId?.toString()
+    if (jobId && this._queuedJobIds.has(jobId)) {
+      console.log(`Ignoring already queued job ${jobId}`)
+      return
+    }
+
+    if (typeof data !== "object") {
       throw "Queue only supports carrying JSON."
     }
-    this._messages.push(newJob(this._name, msg))
-    this._addCount++
-    this._emitter.emit("message")
+    if (jobId) {
+      this._queuedJobIds.add(jobId)
+    }
+
+    const pushMessage = () => {
+      this._messages.push(newJob(this._name, data, opts))
+      this._addCount++
+      this._emitter.emit("message")
+    }
+
+    const delay = opts?.delay
+    if (delay) {
+      setTimeout(pushMessage, delay)
+    } else {
+      pushMessage()
+    }
+    return {} as any
   }
 
   /**
    * replicating the close function from bull, which waits for jobs to finish.
    */
-  async close() {
-    return []
-  }
+  async close() {}
 
   /**
    * This removes a cron which has been implemented, this is part of Bull API.
    * @param cronJobId The cron which is to be removed.
    */
-  removeRepeatableByKey(cronJobId: string) {
+  async removeRepeatableByKey(cronJobId: string) {
     // TODO: implement for testing
     console.log(cronJobId)
   }
@@ -111,12 +162,12 @@ class InMemoryQueue {
   /**
    * Implemented for tests
    */
-  getRepeatableJobs() {
+  async getRepeatableJobs() {
     return []
   }
 
   // eslint-disable-next-line no-unused-vars
-  removeJobs(pattern: string) {
+  async removeJobs(pattern: string) {
     // no-op
   }
 
@@ -128,18 +179,22 @@ class InMemoryQueue {
   }
 
   async getJob() {
-    return {}
+    return null
   }
 
   on() {
     // do nothing
-    return this
+    return this as any
   }
 
   async waitForCompletion() {
     do {
       await timeout(50)
-    } while (this._addCount < this._runCount)
+    } while (this.hasRunningJobs())
+  }
+
+  hasRunningJobs() {
+    return this._addCount > this._runCount
   }
 }
 
diff --git a/packages/backend-core/src/queue/listeners.ts b/packages/backend-core/src/queue/listeners.ts
index 063a01bd2f..14dce5fe8d 100644
--- a/packages/backend-core/src/queue/listeners.ts
+++ b/packages/backend-core/src/queue/listeners.ts
@@ -88,6 +88,7 @@ enum QueueEventType {
   AUDIT_LOG_EVENT = "audit-log-event",
   SYSTEM_EVENT = "system-event",
   APP_MIGRATION = "app-migration",
+  DOC_WRITETHROUGH = "doc-writethrough",
 }
 
 const EventTypeMap: { [key in JobQueue]: QueueEventType } = {
@@ -96,6 +97,7 @@ const EventTypeMap: { [key in JobQueue]: QueueEventType } = {
   [JobQueue.AUDIT_LOG]: QueueEventType.AUDIT_LOG_EVENT,
   [JobQueue.SYSTEM_EVENT_QUEUE]: QueueEventType.SYSTEM_EVENT,
   [JobQueue.APP_MIGRATION]: QueueEventType.APP_MIGRATION,
+  [JobQueue.DOC_WRITETHROUGH_QUEUE]: QueueEventType.DOC_WRITETHROUGH,
 }
 
 function logging(queue: Queue, jobQueue: JobQueue) {
diff --git a/packages/backend-core/src/queue/queue.ts b/packages/backend-core/src/queue/queue.ts
index 0bcb25a35f..1838eed92f 100644
--- a/packages/backend-core/src/queue/queue.ts
+++ b/packages/backend-core/src/queue/queue.ts
@@ -7,6 +7,8 @@ import { addListeners, StalledFn } from "./listeners"
 import { Duration } from "../utils"
 import * as timers from "../timers"
 
+export { QueueOptions, Queue, JobOptions } from "bull"
+
 // the queue lock is held for 5 minutes
 const QUEUE_LOCK_MS = Duration.fromMinutes(5).toMs()
 // queue lock is refreshed every 30 seconds
diff --git a/packages/backend-core/src/redis/init.ts b/packages/backend-core/src/redis/init.ts
index f3bcee3209..7920dfed2d 100644
--- a/packages/backend-core/src/redis/init.ts
+++ b/packages/backend-core/src/redis/init.ts
@@ -9,7 +9,8 @@ let userClient: Client,
   lockClient: Client,
   socketClient: Client,
   inviteClient: Client,
-  passwordResetClient: Client
+  passwordResetClient: Client,
+  docWritethroughClient: Client
 
 export async function init() {
   userClient = await new Client(utils.Databases.USER_CACHE).init()
@@ -24,6 +25,9 @@ export async function init() {
     utils.Databases.SOCKET_IO,
     utils.SelectableDatabase.SOCKET_IO
   ).init()
+  docWritethroughClient = await new Client(
+    utils.Databases.DOC_WRITE_THROUGH
+  ).init()
 }
 
 export async function shutdown() {
@@ -104,3 +108,10 @@ export async function getPasswordResetClient() {
   }
   return passwordResetClient
 }
+
+export async function getDocWritethroughClient() {
+  if (!writethroughClient) {
+    await init()
+  }
+  return writethroughClient
+}
diff --git a/packages/backend-core/src/redis/redis.ts b/packages/backend-core/src/redis/redis.ts
index beb59ee3fa..79f75421d3 100644
--- a/packages/backend-core/src/redis/redis.ts
+++ b/packages/backend-core/src/redis/redis.ts
@@ -320,6 +320,11 @@ class RedisWrapper {
     await this.getClient().del(addDbPrefix(db, key))
   }
 
+  async bulkDelete(keys: string[]) {
+    const db = this._db
+    await this.getClient().del(keys.map(key => addDbPrefix(db, key)))
+  }
+
   async clear() {
     let items = await this.scan()
     await Promise.all(items.map((obj: any) => this.delete(obj.key)))
diff --git a/packages/backend-core/src/redis/utils.ts b/packages/backend-core/src/redis/utils.ts
index 7b93458b52..7f84f11467 100644
--- a/packages/backend-core/src/redis/utils.ts
+++ b/packages/backend-core/src/redis/utils.ts
@@ -30,6 +30,7 @@ export enum Databases {
   LOCKS = "locks",
   SOCKET_IO = "socket_io",
   BPM_EVENTS = "bpmEvents",
+  DOC_WRITE_THROUGH = "docWriteThrough",
 }
 
 /**
diff --git a/packages/pro b/packages/pro
index 6504ee7451..268a16f216 160000
--- a/packages/pro
+++ b/packages/pro
@@ -1 +1 @@
-Subproject commit 6504ee7451b0a4b21e7e061a0f49add143bb483e
+Subproject commit 268a16f216f4b196c7b413e316bbfd20cc5ce6cc
diff --git a/packages/types/src/documents/document.ts b/packages/types/src/documents/document.ts
index 18feb9b518..0de4337f4b 100644
--- a/packages/types/src/documents/document.ts
+++ b/packages/types/src/documents/document.ts
@@ -38,6 +38,7 @@ export enum DocumentType {
   AUTOMATION_METADATA = "meta_au",
   AUDIT_LOG = "al",
   APP_MIGRATION_METADATA = "_design/migrations",
+  SCIM_LOG = "scimlog",
 }
 
 // these are the core documents that make up the data, design
diff --git a/packages/types/src/sdk/db.ts b/packages/types/src/sdk/db.ts
index c4e4a4f02f..4d103d5be6 100644
--- a/packages/types/src/sdk/db.ts
+++ b/packages/types/src/sdk/db.ts
@@ -128,6 +128,7 @@ export interface Database {
 
   exists(): Promise<boolean>
   get<T extends Document>(id?: string): Promise<T>
+  exists(docId: string): Promise<boolean>
   getMultiple<T extends Document>(
     ids: string[],
     opts?: { allowMissing?: boolean }
diff --git a/packages/worker/src/initPro.ts b/packages/worker/src/initPro.ts
index ddc8d2562a..b34d514992 100644
--- a/packages/worker/src/initPro.ts
+++ b/packages/worker/src/initPro.ts
@@ -1,5 +1,4 @@
 import { sdk as proSdk } from "@budibase/pro"
-import * as userSdk from "./sdk/users"
 
 export const initPro = async () => {
   await proSdk.init({})