Merge field labels remain on the document for unpopulated fields
|Knowledge Article Number||000206472|
|Description||Steps to reproduce:
|Resolution||There is no way to hide fields that are not populated via mail merge. The fields will show and just have a blank value. This functionality is working as designed.
However for Extended Mail Merge the field shows underscore for unpopulated value (__). There is an idea posted for the same and also a workaround for Extended Mail merge field with blank value showing up in mail merge