When a request to the conversation list or conversation search returned no results, the route returned page: 1 and isLastPage: false. The other REST routes return page: 0 and isLastPage: true in this case. In addition, the date filters fromDate, toDate, updateFromDate, updateToDate and deletedAtBefore failed with a 500 error when you provided a UTC timestamp ending in Z, for example 2026-09-22T02:55:00Z.

These errors have been fixed. Requests with no results now return page: 0 and isLastPage: true. The date filters now also accept UTC timestamps with Z. Formats with an offset, such as +02:00, continue to work.