TDS Deduction in Manual A/R Credit Memo

Hi Experts,

I am facing one problem regarding TDS deduction in A/R Credit Memo for a Customer.But this Credit Memo is not based on any A/R Invoice since this is to be posted for Commission .

SAP does not allow TDS deduction at A/R Credit Memo Document which is not based on any Base Document .

How to overcome this problem . Is there any workaround possible?

Thanks in advance.

Regards,

Pooja Singh.