When we switched on same day supplier payouts over RTP, the fear was simple. Speed would break reconciliation and month end would turn messy. What saved us was forcing discipline upfront instead of fixing things later. Every payout could happen only against an approved request for payment. And that request had to carry clean, structured remittance data. Three fields were mandatory every single time: internal invoice ID, vendor ID, and cost center, all passed in ISO 20022 format. If the data did not line up, the payment simply would not move. On fraud and control, the real unlock came from trusting the bank callback, not the ERP status. A payment was treated as complete only after the bank confirmed settlement through the API and matched it back to the same invoice ID. That one change removed guesswork and manual follow ups. The outcome was immediate. AP reconciliation stopped being a month end panic and became a daily habit. We cut almost two days from the close cycle and saw zero duplicate or misapplied payments in the first few months. Instant payments create pressure. Embedded controls are what keep finance calm while the business moves faster.
Q1. In order for payouts to occur the same day instead of waiting until the end of the month, organizations need to switch from batch Reconciliations (the way ACH operates) to Event Driven Ledgers. A key step in preventing fraudulent activity is validating accounts immediately with an AUTH code before sending them for processing; because they cannot be reversed through ACH. Most organizations validate the recipient before they issue payment; therefore, the only way to recover from instant unrecoverable losses is by validating accounts at the time of approval rather than issuing payment. Q2. For production purposes, the most important aspect of your payment message is implementing structured ISO 20022 remittance (settlement) data so that it can be used directly within your ERP. In particular, mapping the 'RmtInf' remittance information block directly to your ERP's open items table will allow for STP (Straight Through Processing). Without the use of structured ISO 20022 data, Finance will have to manually pursue phantom payments because they were sent to the bank but not recorded in your ERPs ledger. The ACTC process will automate the entry of entries into your sub-ledger by providing a Webhook callback confirming settled status in real-time; thus allowing the ability for month-end closings to not be a problem as an event.