If after populating my form in Acrobat, and then Forms - Manage Form Data - Export Data to export the data to a file. When I merge the data back into my form, some (not all) fields are missed, and no data is imported back into the form?
Why is this? I can't see any difference in the fields that do export and the fields that don't?
I assume that you are using the same template for import and export.
Have a look at the data file created and see if there is data in the file for the fields that are missing data. If it is not there I suspect that the binding for those fields is set to none meaning you do not want the data in teh data file.