How ISO 20022 models securities settlement through the sese business area, from the settlement instruction and its matching, status, and confirmation at a CSD to securities financing, transfers, and the CSDR buy-in advice.
2026, Jul 17 — 9 minute readA tour of ISO 20022's semt (securities management) business area, the custody reporting layer that carries holdings statements, transaction statements, intra-position movements, penalties, and account queries between an account owner and its custodian or CSD.
2026, Jul 17 — 9 minute readA tour of ISO 20022's seev (securities events) business area, covering corporate actions, general meetings and proxy voting, shareholder identification, market claims, and buyer protection across the custody chain.
2026, Jul 17 — 8 minute readHow ISO 20022 models securities clearing through the secl business area, from trade leg notification and netting to margin, default fund, and buy-in messaging exchanged between a CCP and its clearing members.
2026, Jul 17 — 14 minute readHow ISO 20022 models the interface between a retailer's sale system and its payment terminal through the casp business area, covering the service, session, device, reconciliation, and reporting messages of the sale-to-POI protocol.
2026, Jul 17 — 7 minute readA tour of ISO 20022's reda (reference data) business area, the messages that create, maintain, query, and report the static data behind transactions, from securities, parties, and accounts to standing settlement instructions, calendars, and prices.
2026, Jul 17 — 7 minute readHow ISO 20022 models interbank payments through the pacs business area, the flagship of the MT-to-MX migration, covering the FIToFI credit transfer, direct debit, payment status, return, and reversal messages that move money between banks.
2026, Jul 17 — 8 minute read