I'm working with CF7 and CF7 Google Sheets Connector.
I have a (very) simple warranty claims form and they need a ticket number. I have Flamingo installed, so I can send the unique incremental [_serial_number] via email.
Now, I want to send the [_serial_number] to the Google Sheet to save the ticket number, but this field is not available. Tried adding as custom value meta {_serial_number} and didn't work
I also use CRM Entries to log the form submits, and they have Entity ID that I can send to Google Sheet, but can't use in the email subject. I'm fine using this ID as ticket number as they are unique, I just need to be able to use it in the Mail tab of the CF7.