When I send the invoice to the ZATCA platform, this message appears after the invoice is approved.
Are you using Custom Themes or Footer?
Can you share the Edit screen of the invoice that you displayed above?
You may need to check the Custom Title that you are using.
You can try using the Invoice without a Custom Title. Is the same error occurring?
So far, in my Zatca Test, I have not encountered any issues like the one you mentioned.
its same