A retail ERP usually coexists with commerce platforms, store POS, marketplace APIs, warehouse systems, payment gateways, tax services, loyalty tools and carrier networks. Webhooks can arrive late or repeatedly, marketplace statuses differ, and rate limits make constant full synchronisation impractical. Integration must therefore be stateful and observable.
We use source identifiers, versioned mappings, idempotent commands and reconciliation jobs. High-frequency availability can travel through events while financial and catalogue data follow controlled batches where appropriate. Operations teams receive queues for unmapped SKUs, rejected orders and settlement differences instead of discovering them in month-end totals.