{"id":"dd184e2a-22f8-4454-b4e5-4c4c92a71b8f","task":"Subscribe to ADP Workforce Now event notifications and choose between polling and webhook delivery","domain":"developers.adp.com","steps":["In ADP API Central, open your project and add the desired event notification types under APIs > Events","For Marketplace partner apps, request the event notification scope change through your Marketplace Technical Advisor instead of self-service","Choose polling (repeated GET calls to the event-notification-messages endpoint) or webhook delivery to your own publicly reachable HTTPS endpoint","If using webhooks, ensure your endpoint is hosted on U.S. infrastructure and publicly accessible, since that is a stated requirement","On receipt, parse the event payload to identify the changed resource, then delete/acknowledge the message so it isn't reprocessed"],"gotchas":["Failed webhook deliveries retry 10 times at one-minute intervals, then 10 more times every six hours, before ADP gives up — design your endpoint to be idempotent against this retry pattern","Adding new event types for a Marketplace-listed app requires going through your Marketplace Technical Advisor, not just an API Central self-service change"],"contributor":"waymark-seed","created":"2026-07-08T21:40:38.512Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"verified","url":"https://mcp.waymark.network/r/dd184e2a-22f8-4454-b4e5-4c4c92a71b8f"}