Tag checker
The tag checker confirms every tag in your template still maps to a field in your source. Run it whenever you've changed the source document so you catch broken tags before you send anything.
Check the tags in your workflow
Open your template document block:
Click the Refresh button in the source table. If everything's in order, you'll see a confirmation that all tags are valid:
If a tag is broken, Portant flags it directly in the source table:
In this example, there's a typo in the tag {{Notes}}. Until it's fixed, Portant won't be able to insert that field's value into the output. Correct the typo in the template, then refresh the source table again to confirm every tag is valid.
For the most common causes of invalid tags and how to fix them, see invalid tags.