Detection of discovery files in purview stopped

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Detection of discovery files in purview stopped

Niharika Ch 65

Hi, could someone let me know about "file discovered" activity in purview? Does it discover files for each scan?

I've deployed IP Scanner recently (to run in discovery mode). I could see the files being scanned as per the information in the log path but for some reason in Purview content explorer, can't see anymore "file discovered" activity (i can see other activities like file modified, file created etc..,) It is showing up the "file discovered" activity till Monday but from past few days, it isn't showing up in purview. Has anyone experienced this issue before? Thanks.

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Answer 1

Venkat Reddy Navari 1,585 Microsoft External Staff

Hi @Niharika Ch Yes, the "File Discovered" activity in Microsoft Purview generally shows up when new files are discovered during a scan, particularly when using the IP Scanner in discovery mode. However, it’s important to note that Purview only logs "file discovered" when a file is newly detected — if a file has already been discovered in a previous scan, it won’t trigger that activity again in subsequent scans, even if it’s still being scanned.

Since you're still seeing activities like "file modified" or "file created," that confirms the scanner is active. The absence of "file discovered" likely means:

There haven't been any new files added in the scanned locations.

The same files are being picked up again, which doesn’t count as a new discovery.

Or possibly, there’s a filtering issue in Content Explorer or a delay in updates.

You mentioned it was working until Monday — so here are a few quick checks:

Have any new files been added to the scan targets since then? If not, this is expected.
Check the scanner logs to confirm that discovery mode is still enabled and scanning successfully.
Try adjusting the filters in Content Explorer (date range, activity type, etc.) to make sure results aren't being hidden.
If everything seems in place but the behavior still seems off, consider opening a support ticket — there might be a backend sync or update issue.

Hope this helps. Do let us know if you any further queries.

If this answers your query, do click Accept Answer and Yes for was this answer helpful. And, if you have any further query do let us know.

Niharika Ch 65 Reputation points

2025-04-25T11:54:47.2133333+00:00
thanks for your prompt response.

Have any new files been added to the scan targets since then? If not, this is expected. - Yes, added another repository yesterday and i can see the related logs for the newly added repository in SQL logs but can't see "file discovered activity" in purview for that new repository.

Check the scanner logs to confirm that discovery mode is still enabled and scanning successfully. - Could you confirm me how can i cross check it please? (just to confirm the configs.

Try adjusting the filters in Content Explorer (date range, activity type, etc.) to make sure results aren't being hidden. - Verified and all looks okay.

If everything seems in place but the behavior still seems off, consider opening a support ticket — there might be a backend sync or update issue.
Venkat Reddy Navari 1,585 Reputation points Microsoft External Staff

2025-04-25T13:55:51.8633333+00:00
@Niharika Ch Since you’ve added a new repository and can see relevant logs in SQL but still don’t see the "File Discovered" activity in Purview, it does sound like the scanner is picking up the data, but that information might not be surfacing properly in Content Explorer.

Here’s how you can confirm the IP Scanner config and discovery mode:

Check the scanner configuration file (scannerconfig.json) — Look for these entries: DiscoveryMode": true or "Mode": "Discovery" Correctly defined target paths under "Shares" or "Targets"

Check the scanner logs in the log path (usually under Logs folder on the scanner machine): Look for lines like Discovery scan started, Files found, or any errors/warnings. Confirm that the newly added repository is listed in the scan logs with discovered files.

Permissions: Make sure the scanner has the right access to the new repository — sometimes discovery logs will still be generated even if access is limited, but files won’t be surfaced in Purview.

If all config and logs look fine, and discovery still isn’t reflected in the Content Explorer:

Try re-running the scan manually and monitor the logs closely.

You might also want to check the Microsoft Purview Data Map to see if the new data source appears there at all.

If everything seems to be working but the data isn’t making it into Purview, this could point to a sync delay or a backend issue. In that case, raising a support ticket with Microsoft would be the best next step — include the scanner logs and repository details to speed things up.

Hope this helps. Do let us know if you any further queries.

If this answers your query, do click Accept Answer and Yes for was this answer helpful. And, if you have any further query do let us know.
Venkat Reddy Navari 1,585 Reputation points Microsoft External Staff

2025-04-28T09:46:04.6566667+00:00

@Niharika Ch Following up to see if the above answer was helpful. If this answers your query, do click Accept Answer and Yes for was this answer helpful. And, if you have any further query do let us know.
Venkat Reddy Navari 1,585 Reputation points Microsoft External Staff

2025-04-29T11:30:31.3766667+00:00

@Niharika Ch Following up to see if the above answer was helpful. If this answers your query, do click Accept Answer and Yes for was this answer helpful. And, if you have any further query do let us know.
Niharika Ch 65 Reputation points

2025-04-29T15:07:21.4166667+00:00

It is the issue with the sync. I've stopped the scan and started the scan manually which made the discovered files to show up again. Thanks for your help!
Niharika Ch 65 Reputation points

2025-05-01T13:26:40.57+00:00

Hi, sorry for getting at this again. I've added another cluster with another repo. The content explorer is showing other activities(file deleted, file read) but not 'file discovered' activity. I've tried starting the scan from PowerShell, manually from purview nothing worked. Could you let me know what you mean by this please? (I don't see about this data map while reading through the IP client configuration article from MS).

You might also want to check the Microsoft Purview Data Map to see if the new data source appears there at all.
Venkat Reddy Navari 1,585 Reputation points Microsoft External Staff

2025-05-02T10:45:20.4533333+00:00
@Niharika Ch Here’s how to check the Data Map and confirm whether the files are being registered in Purview correctly:

The Data Map is the core metadata catalog that stores all discovered assets from your connected sources. If newly discovered files aren’t visible here, they won’t appear in Content Explorer either, or “File Discovered” activities won’t show up.

How to Verify If the New Repo Appears in the Data Map:

Open the Microsoft Purview portal -https://web.purview.azure.com → Sign in and select your Purview account.

Browse assets- Go to "Browse assets" in the left pane. → Use the search bar or expand collections to locate your new cluster/repo. → If you don’t see it here, the scan results haven’t made it into the Data Map.

Check Scan Configuration and Logs - Go to "Data Map" > "Sources", then click your data source. - Under "Scans", confirm the most recent scan status is Success. - Review logs to check if the new repo was picked up and if files were found.

Permissions Check - Ensure the scanner has full read permissions on the new repository.

Manual Re-run & Wait - Sometimes it takes a short while for the Data Map to sync -after restarting the scan, give it a few minutes and refresh.
Niharika Ch 65 Reputation points

2025-05-02T14:16:32.9+00:00

Browse assets- Go to "Browse assets" in the left pane. → Use the search bar or expand collections to locate your new cluster/repo. → If you don’t see it here, the scan results haven’t made it into the Data Map.

thanks for your response. After navigating to Purview-> Dat catalog->Browse-> 'Browse assets' - I don't see any cluster which i deployed here???

But one thing i don't understand is - I was able to see 'file discovered' activity earlier but not showing up anymore. As I was able to see earlier then it should show something in here at 'browse assets' right?

Could you suggest me what should i do to make things working here? I don't see anything related to Data map while was reading through IP deployment steps in MS doc's site.

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Detection of discovery files in purview stopped

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