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PG03
Frequent Visitor

Log Analytics Data Missing

‎10-20-2021 10:16 AM

I'm creating a report based on a simple Log Analytics query

 

SigninLogs
| where AppDisplayName startswith "Windows Sign In"
| where CreatedDateTime >= ago(7d)

 

This query returns 87,702 records.

 

When I use the "Export to Power Bi" feature in log analytics, paste the K code into a new blank query and collect the count of records I only get  50,192 records.

 

I've tried adjusted the "ago" to longer and shorter and each time it doesn't return the same amount of data.

 

Confrimed well within the API limits. 

 

Not sure if this is a Power Bi problem or Log Analytics API problem.

 

Any thoughts?

 

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PG03
Frequent Visitor

‎10-22-2021 06:59 AM

I figured out the problem.  In the query I was projecting a column that was a JSON record.  Removing this column from the query normalized the results.

View solution in original post

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PG03
Frequent Visitor

‎10-22-2021 06:59 AM

I figured out the problem.  In the query I was projecting a column that was a JSON record.  Removing this column from the query normalized the results.

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parry2k
Super User
Super User

‎10-20-2021 10:20 AM

@PG03 are you exporting from Power BI or exporting to Power BI, not fully clear where you are exporting to/from?



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PG03
Frequent Visitor
In response to parry2k

‎10-20-2021 11:30 AM

I'm using the Log Analytics "export" command to generate the M query

export.jpg

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