Messages in international payments
Banks exchange structured payment messages. MT103 instructions remain a familiar reference for customer credit transfers, while ISO 20022 messages provide richer structured data.
Guides and explanations
Understand payment messages, references, routing, timing, and investigations.

Banks exchange structured payment messages. MT103 instructions remain a familiar reference for customer credit transfers, while ISO 20022 messages provide richer structured data.
Keep the UETR, sender reference, value date, amount, and currency available when following up with a bank.
The sender should ask their bank to investigate when a transfer exceeds the expected processing time.