ChatGPT commerce: questions on feed readiness and ACP workflow

Hi everyone, I’m currently working with merchants and cross-border brands that are interested in the ChatGPT commerce ecosystem. We are exploring merchant onboarding readiness, product feed preparation, and possible ACP-based checkout implementation. I’m not posting this as a support request, but rather to better understand the practical side of preparation and rollout. A few questions I’d love insight on: 1. For merchants preparing early, what are the most important things to get right in the product feed before formal onboarding? 2. From a practical perspective, what tends to matter most for ACP / checkout readiness? 3. Are there any common mistakes or gaps merchants should avoid when preparing for this kind of integration? 4. For teams working with cross-border brands, are there any best practices for preparing merchants before they enter a more formal review process? Would really appreciate any technical or operational insight from people thinking about this space. Thanks.