Issues uploading Inspection Plans using Excel Add In

Hi there!

I'm using Excel VB add in to create an upload template for Inspection Plans, for the customer to use. This Excel workbook includes Inspection Plan sheet (as a the main one), but also includes Criteria and Specifications sheets:

Uploading data with the first sheet works OK but, when I need to upload any of the sheets left, I can't do it because add in can't recognize key fields on those.

Changing the row status doesn't work either. Row still remains with no value at Change column.

Reading the documentation, there's no field marked as Required (which I believe is the Add in takes in order to make changes).