To add the challan number while making payment for GST in BUSY, follow these steps:
Step 1: Go to transaction section then click on payment voucher type
Step 2: Select the Add tab, then specify the voucher series, date, voucher number, and choose the GST payment to government option in GST nature.
Step 3: Post the accounting entry for tax payment. Before saving the voucher, a GST payment details window will appear where you can update the challan details. Save the invoice after entering the necessary information.