Deduction of TCS on Scrap

Dear Experts,

The requirement of my client is deduct TCS on scrap sales, however SD is not into scope thereby there would be FI Customer invoice(FB70) to be created.

As per SAP note 1168591, SD condition types are required to be assigned to withholding tax type but as there is no SD conditions in our scenario, how to go ahead.

The FI entry which is getting posted after assigning withholding tax code in Customer masters is

Customer A/c Dr

Withholding Tax A/c Dr

To Scrap Revenue

However TCS needs to be deducted from the invoice value.

Seeking for your valuable reply!