TPP Continuity Assurance
Prove that existing TPP registrations continue to operate correctly across the Directory migration.
162 of 172 assessed registrations fully validated against the Bank's configured continuity controls.
The Accelerator provides technical assurance and evidence against the Bank's configured controls. It does not authorise TPPs or make regulatory trust decisions.
Existing TPP Continuity
3 TPPs at risk of migration disruption
Existing TPP registration and Directory migration are separate concerns. A failed continuity control does not mean the TPP must repeat dynamic client registration — the underlying cause and its owner are shown for each affected TPP.
- FAILFinPayments LtdKeyfactor certificate not trusted by Open Banking API GatewayBANK16 Sept, 07:32
- FAILCredaScore Analytics LtdCertificate expiredTPP16 Sept, 08:33
- FAILOpenLedger Pay LimitedOrganisation not found in the new DirectoryINVESTIGATION REQUIRED16 Sept, 09:34
Common Migration Issues
Failures aggregated by root cause — fix one underlying issue rather than many TPP symptoms
- BLAST RADIUS: 17 TPPsSystems: Open Banking API Gateway, NGINX Reverse ProxyOwner: Bank PKI TeamAction: BANK
- BLAST RADIUS: 184 TPPsSystems: TPP Registration ServiceOwner: API EngineeringAction: BANK
- BLAST RADIUS: 184 TPPsSystems: Jans IAM, Open Banking API Gateway, TPP Registration ServiceOwner: IAM EngineeringAction: BANK
- BLAST RADIUS: 4 TPPsSystems: TPP Registration ServiceOwner: Open Banking ArchitectureAction: INVESTIGATION REQUIRED
- BLAST RADIUS: 172 TPPsSystems: Certificate Validation ServiceOwner: Network EngineeringAction: BANK
Cutover sub-gates
Feeds the Existing TPP Continuity gate in the Cutover Control Centre
- PASSExisting registrations preserved184 client registrations intact; no mass re-registration dependency detected
- FAILDirectory identity resolutionLegacy Directory lookup remains configured; 1 organisation not found
- PASSEntrust certificate continuity137 Entrust certificates validate against the existing chain
- FAILKeyfactor certificate readinessKeyfactor chain missing from the Open Banking API Gateway trust store
- WARNINGDual trustProven at the load balancer; not yet proven at the gateway
- PASSSSA validationSoftware statement signatures validate against the new Directory JWKS
- WARNINGRole / permission validation4 role differences under investigation
- WARNINGRepresentative end-to-end testing5 of 7 cohorts completed end-to-end
- FAILCritical TPP exceptions3 migration-critical continuity failures remain unresolved
- WARNINGEvidence completeness91% TPP continuity evidence coverage; target 95%
TPP continuity control library
20 controls across registration, Directory, roles, certificates, SSA and end-to-end