Error code 'Forbidden: AuthenticationUnsuccessful' appears when trying to process an invoice or sync a Customer from BMS to Xero

Created by Greg Lock - Innovative Solutions, Modified on Thu, 21 May at 2:39 PM by Greg Lock - Innovative Solutions

Product: BMS, Xero

Problem: Error code 'Forbidden: AuthenticationUnsuccessful' appears when trying to process an invoice or sync a Customer from BMS to Xero.

Possible causes: The integration from BMS to Xero has been updated or requires a re-authentication.

Solution: Re-authenticate the Entities' Xero integration:

1. Under Admin > Entities, click on 'Remove Authentication' for the Entity in question.

2. You will now have the option to Authenticate the Entity. Follow the onscreen instruction to reauthenticate.

3. If the Xero Instance authentication screen does not appear, you may need to setup the Xero integration from scratch.

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