You have created an A/P invoice, and in the WT Tax Category window, you have selected a WTax code that is defined for TDS.

You have chosen the Add button.

From the SAP Business One Main Menu, you have chosen  Banking Outgoing Payments Outgoing Payments , and have selected the TDS radio button.

In the Outgoing Payments window, you have specified the required fields.

You have chosen the Pick TDS Entries button.

In the TDS Entries window, you have selected the invoice created in step 1 and have chosen the OK button.

You have selected the same invoice to deposit but you have not added it.

You have added the first payment and then have tried to add the second payment.