Please allow the system to accept other credit note characters in the invoice field. It is very time-consuming having to action these manually.

"Looking at the screenshot you provided, it seems that there was an "em dash" (a long dash that is not accepted by the system) as part of the invoice reference, which resulted in the error message "Please remove invalid character — from Invoice number field". Please use a short dash ("en dash") in such situations and the items should be published successfully."