Agentic Shopping

From implementation to production: best practices for agentic commerce

Laatst bijgewerkt: October 7, 2025

The last mile: ensuring your integration doesn’t fail in practice

A working Agentic Commerce Protocol (ACP) integration is one thing, but a robust, reliable, and performant integration in production is a completely different challenge. The official OpenAI documentation emphasizes several crucial best practices that make the difference between a successful launch and a stream of error messages.

1. Test, test, and test again

Before going live, you must rigorously test every step of the checkout flow.

  • End-to-end (E2E) tests: Simulate the entire flow, from creating a checkout session to finalizing the purchase. Use the test mode in the API to make real API calls without processing actual transactions.
  • Edge cases: What happens if a product suddenly goes out of stock? What if a discount code is invalid? Test these edge cases to ensure your API returns clear and correct error messages.

2. Monitoring and alerting

You can’t fix what you can’t see. Once you are live, it is essential to continuously monitor the health of your integration.

  • API performance: Keep an eye on the load times (latency) of your API endpoints. A slow API leads to a poor user experience in the chat.
  • Error rates: Set up alerts for an unusual increase in 4xx (client) or 5xx (server) error messages. This could indicate a problem in your system or a change in the agent’s requests.

3. Optimize the “freshness” of your product feed

An outdated product feed is a guarantee for failed transactions. The AI agent must be able to trust the information you provide.

  • Frequent updates: OpenAI recommends refreshing your feed at least every 15 minutes. This ensures that changes in price and inventory are picked up quickly.
  • Stable URLs: Ensure that the URL of your product feed is stable and permanent.

4. Be prepared for the future

The Agentic Commerce Protocol is still evolving.

  • Versioning: Be prepared for future versions of the API. Build your integration in a way that makes it easy to implement updates.
  • Graceful degradation: Ensure that if a new, unknown field is sent in a request, your API ignores it instead of crashing.

Summary: your go-live checklist

  • Perform end-to-end (E2E) tests in test mode.
  • Simulate edge cases like out-of-stock products and invalid discount codes.
  • Monitor the latency and error rates of your API endpoints.
  • Set up alerts for an unusual spike in 5xx errors.
  • Refresh your product feed at least every 15 minutes.
  • Ensure your API ignores unknown fields in requests (graceful degradation).

By following these best practices, you ensure that your Agentic Commerce channel not only works on launch day but also remains reliable and scalable in the future.