To solve the above sync error, follow these steps:Open ProcureDesk.Navigate to the document.Open the document.Go to Actions.Click on Send for Integration.Related ArticlesQuickBooks Online PO Sync Error - PurchaseOrder has to be enabled in SettingsAuthorization FailureAuthorization Failure: Unknown error during Authentication, status code: 500Resolving Duplicate Attachment Sync Error in ProcureDeskBill.com sync error: Cached plan must not change result type.QuickBooks Desktop Error: Check the "qbsdklog.txt" file for additional information