On end-of-call-report this is populated but not for other events like conversation-update. Is there a reason for this? https://cdn.discordapp.com/attachments/1413343833617334312/1413343833856671914/CleanShot_2025-09-05_at_12.00.552x.png?ex=68bb9684&is=68ba4504&hm=f1d531df6c139432e1df03394b48b76b2e6593d61755daa337d0177e4d143bdf& https://cdn.discordapp.com/attachments/1413343833617334312/1413343834330370228/CleanShot_2025-09-05_at_12.01.002x.png?ex=68bb9684&is=68ba4504&hm=bd00d1cb46ba8d0ee21e500252dd4cd3d49b9c2501736335dd83a94f1a3a42ed&

Thank you for your question! To help clarify, could you share more about how you are using the

messagesOpenAIFormatted

field—are you expecting it to be populated during all event types, or only specific ones (like

end-of-call-report

)? This will help me better understand your use case and provide more targeted guidance.

I am expecting the messageOpenAIFormatted to always be populated

Hi ian, The

messagesOpenAIFormatted

isn't listed as deprecated in the available changelogs, but there have been some recent updates that could affect its behavior. Specifically, the May 27, 2025, update introduced new endpoints to manage chat sessions and removed the variable extraction feature. If

messagesOpenAIFormatted

relies on these functionalities, its population could be inconsistent due to these changes. I recommend reviewing the recent updates for any related impacts, such as the removal of variable extraction or specific API changes. You can view the changelog for May 27, 2025, [here](https://docs.vapi.ai/changelog/2025/5/27). Please let me know if there's anything else you need help with.