[A] Go to the "Payments" (1)  module in the left hand panel. Here you will see all the Payment you are going to receive. 

[B] To log payments that you have made against the purchase invoiceChange "Status" to Payables(2). Search and select the Tax invoice against which payment is to be logged(3). 

[C] Click on "Log Payment"(4). A New Payment page for details will be opened.

[D] Fill in all the details, Tick "Mark Paid" for complete payment, and then click on "Log Payment". 

[E] After you click on "Log Payment", you will be able to see the payment in the "Status" as Paid of the "Payments" module.

[F] The payment will also be reflected in the transaction timeline.

Keywords: Log payment, Add payment, Make Payment, Receipt, Paid, Split Item, Log Receipt, Log TDS