New Purview Exports not valid?

Question

New Purview Exports not valid?

Damon 5

When exporting data the zips all show data after payload instead of of the previous header warnings. They extract fine, but one thing I noticed was that the logs aren't exactly correct. There was a zip file in the log that said successful with date, author, size. But on the actual export was there but 0 size and not there. Is there any specific archive tool I'm supposed to use? I have used 7-zip, WinRAR, and normal Windows. My main concern is these logs are saying everything's there, but there are more gaps.

Oliver Line 0 Reputation points

2025-08-28T10:50:18.9833333+00:00

Also receiving this same error in a customer environment where 0 byte .zips are presented by Microsoft Purview when collecting through Microsoft Purview Graph API. Apparently this happens sometimes when "Export is Not Fully Completed or Stale Link: Even if the export operation status is marked as succeeded, the download URL may point to a blob that hasn't finished writing or is temporarily inaccessible. Retrying later often work."
In addition to this, we are also seeing "zip END header not found" issues with the resulting .zips. This is ever since Microsoft have deprecated CDS and changed the export format to an Items.zip and a Reports.zip.
Suspect the "zip end header not found" issue is related to the same issue above and in this thread. Testing some things now but would be good to get some insight from Microsoft on this.

Thanks,

1 answer

Your answer

Oliver Line 0 Reputation points

2025-08-28T10:50:18.9833333+00:00

Also receiving this same error in a customer environment where 0 byte .zips are presented by Microsoft Purview when collecting through Microsoft Purview Graph API. Apparently this happens sometimes when "Export is Not Fully Completed or Stale Link: Even if the export operation status is marked as succeeded, the download URL may point to a blob that hasn't finished writing or is temporarily inaccessible. Retrying later often work."
In addition to this, we are also seeing "zip END header not found" issues with the resulting .zips. This is ever since Microsoft have deprecated CDS and changed the export format to an Items.zip and a Reports.zip.
Suspect the "zip end header not found" issue is related to the same issue above and in this thread. Testing some things now but would be good to get some insight from Microsoft on this.

Thanks,

Answer 1

Hello,

Thank you for posting in Q&A forum.

Based on the information you provided, I suspect that your compressed file is not complete. You can refer to the following steps to troubleshoot:

Open the command prompt and use the cd command to switch to the WinRAR installation directory.
Use the Rar.exe command to test the compressed file:

For example, if your compressed file is named example.rar, the command will be:

rar t example.rar

After the command is executed, the command prompt will display the test results. If the file is intact, it will usually display "All OK".

I hope the information above is helpful.

Best regards

Zunhui

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New Purview Exports not valid?

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