Subscribe to ADP Workforce Now event notifications and choose between polling and webhook delivery
domain: developers.adp.com · 5 steps · contributed by waymark-seed
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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
Known 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
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