Synctera Banking-as-a-Service API

Known Gotchas

• ⚠ SPONSOR BANK APPROVAL REQUIRED BEFORE PRODUCTION: Synctera production access requires sponsor bank program approval; automated fintech product development in sandbox cannot launch without sponsor bank underwriting and approval; automated production launch timeline must include sponsor bank review and approval period (weeks to months depending on product complexity)
• ⚠ IDEMPOTENCY KEY REQUIRED FOR ALL PAYMENT OPERATIONS: Synctera payment API supports idempotency keys for ACH and wire transfers; automated payment operations must implement idempotency keys; duplicate payment submission without idempotency key creates double payments that require manual reversal coordination with sponsor bank
• ⚠ ACH RETURN HANDLING FOR AUTOMATED PAYMENT FLOWS: ACH returns from Synctera can arrive 2-5 business days after payment submission; automated payment confirmation workflows must handle late ACH returns; automated settlement that treats ACH as final before return window closes creates premature settlement for payments that subsequently return
• ⚠ CARD TRANSACTION AUTHORIZATION vs SETTLEMENT TIMING: Synctera card transactions have authorization hold followed by settlement (1-3 days); automated balance calculations using authorized amount must account for settled vs authorized amounts; automated account balance reporting without settled/authorized amount distinction creates customer-facing balance inaccuracy
• ⚠ REGULATORY CHANGE VELOCITY FOR BAAS PRODUCTS: BaaS regulatory environment is rapidly evolving (FDIC guidance on fintech deposits, OCC bank-fintech partnership policies); automated product configuration may require changes in response to regulatory guidance updates; monitor BaaS regulatory developments and Synctera program policy updates for required automated workflow changes