GLOBAL PAYMENTS KNOWLEDGEISO 20022 / SWIFT / SEPA / MT / MX
PAYMENTSSIGNAL

The interactive academy for the standards, messages, and rails that move money.

PROGRESS
BREAK IT · SWIFT SERIAL PAYMENT (MT103)

What happens when this goes wrong?

Every other page shows this payment working. Here you choose what breaks, and follow the damage — because a hold, a return or a missed cut-off is the system working as designed, and reading one calmly is the job.

CHOOSE WHAT GOES WRONG

Pick a failure above. Nothing here is invented — each one is a reason code this rail really uses, at the step where it really strikes.

EVERY FAILURE ON THIS RAIL

  • CUTOFFStep 4: The MT103 goes to Bank Alfa's USD correspondent — The MT103 arrives after Meridian's USD cut-off
  • RETURNStep 9: Cassia validates the incoming payment — The beneficiary account number is invalid — funds go back

Both banks share one USD correspondent, so settlement is a single book transfer. Longer chains add hops, charges, and time; FX is omitted. Every failure here is authored on SWIFT serial payment (MT103), with the sources that back it.