This error appears when attempting to send Menu Items from Event Temple to Mews and the Primary Contact on the booking is not correctly synced. In most cases, this means the contact linkage between Event Temple and Mews is broken or missing.
How to fix it
You will need to re-sync the Booking’s Primary Contact with Mews.
If the Customer already exists in Mews
Open the booking in Event Temple
Click the Primary Contact name to open the Contact Summary
Click Unlink in the PMS section
Click Link to Mews
Select Use Existing
Search for the customer
Select the correct customer
Click Link
The contact will now be re-synced and you should be able to send the order successfully.
If the Customer does NOT exist in Mews
Open the booking in Event Temple
Click the Primary Contact name to open the Contact Summary
Click Unlink
Click Link to Mews
Select Create New
Click OK
The contact will now be created and synced to Mews, allowing the order to be sent successfully.