Issue Export Summarized Data & Fields Parameter

Hi pinellus​,

Based on the isolation you have already done, I think a service-side regression is a reasonable suspicion, although I wouldn't call it confirmed yet.

Microsoft's current Export data documentation states that Data with current layout and Summarized data have the same data granularity; for a matrix, the main difference is that Current layout preserves the matrix shape while Summarized data produces a flat table.

That makes your result interesting: if Current layout still exports successfully from the same visual while Summarized data suddenly fails for all users, the problem seems more specific to the summarized-data query generation than to export permissions or the model generally.

I also don't see standard summarized export listed as an unsupported scenario in the current Field Parameters limitations.

One test I would try is duplicating the matrix and temporarily replacing the three Field Parameters with the physical fields/measures currently selected by those parameters. If Summarized data succeeds on that static version, that would isolate the Field Parameter interaction quite strongly.

Given that the same report worked until 11 September with no report/model changes, I would keep using Data with current layout as the temporary workaround and raise this with Microsoft Support with the failing visual, timestamp and error details. Microsoft now publishes active Fabric issues through the Fabric Support known-issues experience.

So I think your regression hypothesis is plausible; I just wouldn't state it as confirmed until Microsoft acknowledges the issue.

AI-assisted drafting: AI was used to help structure and phrase this response. I reviewed and validated the technical content before posting.