versus the previous containing 'Source.Name' as header : so which is the 'good one' when you receive the data ?!
I think you have informed me for this error , if you are comfortable with previous file before updating so ignore modification . actually when import data will add Source.Name in A1 so what you decide about that ?
The source 'tt' data as individual worksheet column 'Sr' from PO-2023-000022 has duplicates
I don't see any duplicates numbers for SR column , and I don't think to adjust anything for PO-2023-000022 file
PO-2023-000024 has a missing number or is not well numbered :
you mean in column A , right?
sorry yes that's correct .
new strategy to deploy or just again a bad copy you have made ?
there is no new strategy .
EDITED File