incremental refresh issue

[Adi_A1]

At first it went as the incremental refresh should in the settings of loading 2 years back and updating records from 1 day ago
After a few days the refresh stopped working and the error was received: Error: Expression.Error: The column 'Column1' of the table wasn't found. <ccon>Column1</ccon>. RootActivityId =----.Param1 = Expression.Error: The column 'Column1' of the table was not found. <ccon>Column1</ccon> Request ID:----.
If I changed the incremental refresh settings to load 2 days instead of 2 years ago, the refresh worked
What could be the problem because of it every time that is over 2 days falls?

[Anonymous]

Hi @Adi_A1 ,

Based on the error message you've provided, it seems that the problem revolves around the column 'Column1' not being found during the refresh operation.

Try checking the table schema of the data source as well as of the individual partitions in the semantic model separately as well as the data source now to see if it has changed.

Best Regards,
Gao
Community Support Team

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[lbendlin]

What is your data source?  Does it have a fixed meta data structure across all partitions?

How big are the yearly partitions?

[Adi_A1]

hi @lbendlin 
this is my data source:

there are ~10K records in a year