Before the Form 16 generation process, admin need to make sure that they have downloaded the Form 16 Part A & Part B files of your employees from TRACES and the same is saved in your system in a PDF or zip format without renaming the original file name.
There could be situations where admin has downloaded the Part A and Part B documents from the traces in a text or any other format and trying to upload the same in greytHR.
Ensure these documents are always in the PDF & Zip format and not renamed.
https://support.greytip.in/hc/en-us/articles/360025248132-What-are-the-Prerequisites-for-Form-16-