Material number field is greyed out when Item Category = L in PO (Order Type: ZL)

[Angela_Wu1]

I am currently working on a subcontract Purchase Order (PO) with Order Type 'ZL' and encountered an issue when setting the Item Category to 'L'. The material number field becomes greyed out and the material number is not displayed.

I have two clients: On one client, I face this issue where the material number doesn't appear when Item Category is set to 'L'. However, on the other client, the material number is displayed as expected.

Could you please provide insights into why this discrepancy exists and how to resolve it?

The screenshots for the client where this issue occurs are attached below:

1. Screenshot where Item Category is set to 'L' and the material number field is greyed out.

  2. Screenshot where Item Category 'L' is removed and the material number appears.

Thank you for your help!

Best regards,
Angela