Microsoft Dynamics 365 Business Central sync error: An unexpected error occurred. The following error has occurred in the Dynamics NAV Connector: Stream was not readable

Why the sync error occurs

This error occurs when a bill/purchase invoice payment in Cashflow360 is trying to sync to Microsoft Dynamics 365 Business Central (MSDBC), but the Payment Journal Name (Payables) sync preference is missing or incorrect.

How to fix the sync error

Check the sync preferences in Cashflow360 to be sure the correct name is entered for Payment Journal Name (Payables).

  1. Select Settings
  2. Select Preferences under Sync
  3. Select the Edit icon
  4. Enter or correct the Payment Journal Name (Payables), and select Save
  5. Sync again