Get Certificate URL: https://journalname.com/certificate/document/get_thx?name={$reviewerName}&journals=JOURNAL_NAME&title={$submissionTitle}&language=en
Simple text not URL: https://journalname.com/certificate/document/get_thx?name={$reviewerName}&journals=JOURNAL_NAME&title={$submissionTitle}&language=en
Get Certificate URL didn’t work.
Simple text worked.
I don’t think you’ll be able to do this without making at least some small code modifications. The email variables are not URL-encoded, so when you attempt to include them in a URL, there will be lots of characters that won’t be properly escaped for use in a URL.
The best way to do achieve what you’re looking for is probably to add a new email variable that’s built in the PHP code. See for example this code, which assigns a URL to a variable in what I think is the code responsible for building the screen you’ve pasted:
Regards,
Alec Smecher
Public Knowledge Project Team