Hi @Ishahath90 ,

Please refer below community post

BR/Janith

1. Go to External File Templates and Query for File Template “STDSIN1”
2. RMB Details

3. Details tab has the specifics of the template STDSIN1

If you want to import supplier invoice with multi-line you should use STDSIN1 template.

This template allows you to use more than one rows type I (Items).

You can add also more line for postings.

In attachment you will find an example how this file should look like.