diff --git a/packages/server/src/utilities/rowProcessor/bbReferenceProcessor.ts b/packages/server/src/utilities/rowProcessor/bbReferenceProcessor.ts
index 6f41d3d55f..5b7e852f50 100644
--- a/packages/server/src/utilities/rowProcessor/bbReferenceProcessor.ts
+++ b/packages/server/src/utilities/rowProcessor/bbReferenceProcessor.ts
@@ -1,13 +1,15 @@
-import { cache } from "@budibase/backend-core"
+import { cache, db as dbCore } from "@budibase/backend-core"
 import { utils } from "@budibase/shared-core"
-import { FieldSubtype } from "@budibase/types"
+import { FieldSubtype, DocumentType, SEPARATOR } from "@budibase/types"
 import { InvalidBBRefError } from "./errors"
 
+const ROW_PREFIX = DocumentType.ROW + SEPARATOR
+
 export async function processInputBBReferences(
   value: string | string[] | { _id: string } | { _id: string }[],
   subtype: FieldSubtype
 ): Promise<string | null> {
-  const referenceIds: string[] = []
+  let referenceIds: string[] = []
 
   if (Array.isArray(value)) {
     referenceIds.push(
@@ -26,6 +28,17 @@ export async function processInputBBReferences(
     )
   }
 
+  // make sure all reference IDs are correct global user IDs
+  // they may be user metadata references (start with row prefix)
+  // and these need to be converted to global IDs
+  referenceIds = referenceIds.map(id => {
+    if (id?.startsWith(ROW_PREFIX)) {
+      return dbCore.getGlobalIDFromUserMetadataID(id)
+    } else {
+      return id
+    }
+  })
+
   switch (subtype) {
     case FieldSubtype.USER:
       const { notFoundIds } = await cache.user.getUsers(referenceIds)
diff --git a/packages/server/src/utilities/rowProcessor/tests/bbReferenceProcessor.spec.ts b/packages/server/src/utilities/rowProcessor/tests/bbReferenceProcessor.spec.ts
index d0932b399c..b6174861d4 100644
--- a/packages/server/src/utilities/rowProcessor/tests/bbReferenceProcessor.spec.ts
+++ b/packages/server/src/utilities/rowProcessor/tests/bbReferenceProcessor.spec.ts
@@ -154,6 +154,15 @@ describe("bbReferenceProcessor", () => {
 
         expect(result).toEqual(null)
       })
+
+      it("should convert user medata IDs to global IDs", async () => {
+        const userId = _.sample(users)!._id!
+        const userMetadataId = backendCore.db.generateUserMetadataID(userId)
+        const result = await config.doInTenant(() =>
+          processInputBBReferences(userMetadataId, FieldSubtype.USER)
+        )
+        expect(result).toBe(userId)
+      })
     })
   })