How long do previous messages in the previous response id last?

[_j]

They are not expiring or being removed at all as far as I can see, has far back as March 12.

The documentation is wrong. The API persistence is breaking documentation, expectations, and promises. And yet you still cannot rely on anything past the 30 days stated multiple places.

There is no endpoint for listing them that you are allowed access to, and there is no delete option in the UI logs where you see the persistence that was never disclosed.

As I reported and only receive an “I will investigate” with no investigation:

@_j

I show an organization’s logs, and unlike the documentation that says that stored responses persist for 30 days by default, or a “minimum of 30 days” of other pages, nothing at all has ever been automatically removed or expired at all, ever, from my organization logs of the Responses endpoint since the introduction of the Responses endpoint and the logging of “store” by default was turned on. The age is now 80 days and growing.