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tolgakurt
Frequent Visitor

DirectLake Auto Refresh Error

Hello.

 

I created a lakehouse on Fabric workspace and took the datasets here to the semantic model and visualized them via PowerBI. I added a new column to the delta format transaction table in Lakehouse with Spark notebook and changed the name of an existing column. (isFirstTrx -> FirstTrx). There was no problem before making this change, but after making this change I started receiving the error below and the newly added fields were not transferred to my existing semantic model.

 

Refresh Error Details :

Power BI Premium Backend Error: An error has occurred while framing the dataset a65e467e-3367-442b-a446-4a60e26ebedd, error: Microsoft.AnalysisServices.OperationException: Failed to save modifications to the server. Error returned: 'We cannot access the source column '<oii>isFirstTrx</oii>' of delta table '<oii>Transaction</oii>' referenced by table '<oii>Transaction</oii>'. Either the source column does not exist, or you don't have access permissions. Consider removing the column reference from the table in the model. Please refer to https://go.microsoft.com/fwlink/?linkid=2248855 for more information. '. at Microsoft.AnalysisServices.Tabular.Model.SaveChangesImpl(SaveContext context) at Microsoft.ASWL.Service.Engine.SeethruAutoSync.SeethruAutoSyncManager.<InvokeFramingAsync>d__38.MoveNext() in /_/ASWL.Service/Engine/SeethruAutoSync/SeethruAutoSyncManager.cs:line 626.
Cluster URI: WABI-WEST-EUROPE-B-PRIMARY-redirect.analysis.windows.net
Activity ID: bea15505-55a5-4cdc-8696-643a0ab27c08
Request ID: bea15505-55a5-4cdc-8696-643a0ab27c08
Time: 2025-03-26 18:00:08Z

Anyone have any thoughts on the subject?

5 REPLIES 5
v-prasare
Community Support
Community Support

Hi @tolgakurt

as we haven’t heard back from you, we wanted to kindly follow up to check if the solution provided for your issue worked? or let us know if you need any further assistance here?

 

 

 

 

Thanks,

Prashanth Are

MS Fabric community support

 

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly and give Kudos if helped you resolve your query

v-prasare
Community Support
Community Support

Hi @tolgakurtas we haven’t heard back from you, we wanted to kindly follow up to check if the solution provided for your issue worked? or let us know if you need any further assistance here?

 

 

 

 

Thanks,

Prashanth Are

MS Fabric community support

 

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly and give Kudos if helped you resolve your query

lbendlin
Super User
Super User

Are you referencing that column in Power Query code or in visuals?  If so then you need to remove/correct these references.

Yes, I was doing some measure calculations with these columns. But that wasn't the problem. I found the solution while checking the settings in the semantic model. When we make a change in the dataset, we need to update these changes in the semantic model.

 

Semantic Model -> Open Data Model -> Edit Tables

 

tolgakurt_0-1743070528152.png

 

When we do this and update the model, the error is resolved.

@tolgakurt updating the Semantic Model is the key step after making schema changes in your Fabric Lakehouse. 

 

always Update the Schema in the Semantic Model After Schema Changes, Any time you rename, add, or remove columns in your Lakehouse table, make sure to refresh and update the dataset schema in Power BI.

 

 

 

Thanks,

Prashanth

MS Fabric community support

 

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly and give Kudos if helped you resolve your query

 

 

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