Reply To: Live captions and custom metadata

InDesign's caption setup can only import specific metadata. Put simply, if the data is not in a field which InDesign recognises, it won't be able to import it.

A solution may be to move the metadata from one field to another which InDesign can see, such as Description. This can be done one at a time through Bridge, but a more automatic solution would be a bridge script which would do this.