Help with transformation

[Marza1991]

How can I make sure specific transformations such as remove top 3 rows and promote first row to header is applied to all source files when sourcing to a onedrive folder. I’ve successfully removed the top three rows by transforming the “Transform Sample File” but whenever I promote the top row to Column headers I get an error message stating “column 1” of the table wasn’t found.

This has been so frustrating. I can’t seem to get it to work. Any insight, tips, tricks, help ?

[v-cgao-msft · Accepted solution]

Hi @Marza1991 ,

Try first removing the change type step each time you promoted the headers:

then Remove changed type steps under other queries.

Best Regards,
Gao
Community Support Team

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If I misunderstand your needs or you still have problems on it, please feel free to let us know. Thanks a lot!

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