diff --git a/packages/backend-core/src/errors/errors.ts b/packages/backend-core/src/errors/errors.ts
index 4e1f1abbb5..7d55d25e89 100644
--- a/packages/backend-core/src/errors/errors.ts
+++ b/packages/backend-core/src/errors/errors.ts
@@ -55,6 +55,18 @@ export class HTTPError extends BudibaseError {
   }
 }
 
+export class NotFoundError extends HTTPError {
+  constructor(message: string) {
+    super(message, 404)
+  }
+}
+
+export class BadRequestError extends HTTPError {
+  constructor(message: string) {
+    super(message, 400)
+  }
+}
+
 // LICENSING
 
 export class UsageLimitError extends HTTPError {
diff --git a/packages/types/src/documents/account/account.ts b/packages/types/src/documents/account/account.ts
index dad8abed30..5321aa7e08 100644
--- a/packages/types/src/documents/account/account.ts
+++ b/packages/types/src/documents/account/account.ts
@@ -51,6 +51,7 @@ export interface Account extends CreateAccount {
   licenseRequestedAt?: number
   licenseOverrides?: LicenseOverrides
   quotaUsage?: QuotaUsage
+  offlineLicenseToken?: string
 }
 
 export interface PasswordAccount extends Account {
diff --git a/packages/types/src/sdk/licensing/feature.ts b/packages/types/src/sdk/licensing/feature.ts
index 1cbdd55bcf..f286a1cc44 100644
--- a/packages/types/src/sdk/licensing/feature.ts
+++ b/packages/types/src/sdk/licensing/feature.ts
@@ -9,6 +9,7 @@ export enum Feature {
   BRANDING = "branding",
   SCIM = "scim",
   SYNC_AUTOMATIONS = "syncAutomations",
+  OFFLINE = "offline",
 }
 
 export type PlanFeatures = { [key in PlanType]: Feature[] | undefined }
diff --git a/packages/types/src/sdk/licensing/license.ts b/packages/types/src/sdk/licensing/license.ts
index ebc874bca0..e8ad98fe7a 100644
--- a/packages/types/src/sdk/licensing/license.ts
+++ b/packages/types/src/sdk/licensing/license.ts
@@ -1,14 +1,15 @@
 import { PurchasedPlan, Quotas, Feature, Billing } from "."
+import { ISO8601 } from "../../shared"
 
 export interface OfflineIdentifier {
   installId: string,
   tenantId: string
 }
 
-// export interface OfflineLicense extends License {
-//   identifier?: OfflineIdentifier
-//   identifierBase64: string
-// }
+export interface OfflineLicense extends License {
+  identifier: OfflineIdentifier
+  expireAt: ISO8601
+}
 
 export interface License {
   features: Feature[]
diff --git a/packages/types/src/shared/typeUtils.ts b/packages/types/src/shared/typeUtils.ts
index 71fadfc7aa..143865c60b 100644
--- a/packages/types/src/shared/typeUtils.ts
+++ b/packages/types/src/shared/typeUtils.ts
@@ -1,3 +1,5 @@
 export type DeepPartial<T> = {
   [P in keyof T]?: T[P] extends object ? DeepPartial<T[P]> : T[P]
 }
+
+export type ISO8601 = string
\ No newline at end of file