Review prerequisites to enable features for processing authorization amounts and invoices.

• To support processing authorization amounts, the following features must be enabled:

  • Validate Client-Side HPM Parameters. Follow the instructions in Validating client-side HPM parameters to enable it.

  • Either Credit Balance or Invoice Settlement.

• To support processing invoices, the following requirements must be met:

  • Validating Client-Side HPM Parameters must be enabled.

  • The invoices must be posted before the invoices are paid through the one-time payment.