Inbound IMPS Payment Processing

The inbound IMPS payments are received as Request pay message from NPCI. System receives and processes the payments based on predefined processing steps.
  • Inbound payments follows the below listed processing steps:
    • Message Parsing and Message Type/Transaction Type Derivation
    • Initial Validations
    • Host/Branch Derivation
    • Duplicate Check
    • Sanctions Check
    • External Account Credit Check
    • Response Pay Message Generation and Check Transaction Status Response generation if applicable
    • Internal Pricing, if applicable
    • Accounting

Note:

If Inbound IMPS message is having RRN and Sending Bank NBIN matching with existing transaction then it should be returned with “94: Duplicate Transaction Response code”.