Problem with return values with Form Request - Standard Invoice Entry

Hello Team,

I created a simple Form Request using program P03B2002 (Standard Invoice Entry) to generate an invoice and attach a text media object via Attachment. My goal is to test the Form Request and ensure the returned values (KCO, DOC, DCT, and SFX) are passed as parameters for the media attachment GT03B11.

The issue I'm facing is that the returned values are blank or zero, which prevents me from attaching the media text to the correct order.

This is my Form Request:

These are my returned values

After running my Orchestrator, I have a value on Prev. Document, Batch Number, but other are blanc