Message Type: Integration-related - Dynamics 365 Business Central.
Cause: This MAY be related to the settings for the AP account/liability account in BC.
Action: The account must not have any settings for ProdPostingGroup.
In the example screenshot below, there is a setting for “VAT Product Posting Template = 0.” This setting should be removed.

If this does not resolve the issue, please contact us at the MediusGo Customer Center directly via the support button on the invoice or through the customer portal.