TDS calculation on advances
I need to test for one of my client whether is TDS calculated by SAP or not?
For this I have checked the Tax codes assigned to company codes in SPRO and other requirement like Extended with holding tax calculation should be activated etc. In essence, I have checked the TDS configuration in SPRO and confirmed that it is automatic, But the problem starts because now my client is saying that for some vendors they do advance payment on Proforma Invoice and deduct TDS; while during final payment they deduct balance TDS depend on invoice.
Can someone tell me how to test such thing in SAP. Is there any config in SPRO that we can check?