Duplicate IRN number on e-invoice portal for BUSY-generated invoice. How to fix?
If it shows a Duplicate IRN Number when generating an E-Invoice, follow these steps:
Step 1: Voucher numbers cannot start with zero.
Step 2: Voucher numbers cannot exceed 16 characters.
Step 3: Check the same voucher number on the portal. If it's already generated, you cannot generate it with the same invoice number.
Step 4: If the issue is not resolved it is recommended to contact the support of the e-invoice portal for further assistance.