Error on Incremental Update

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Anonymous wrote:

carolinejesus  Hi there, we need to have Power BI premium license to have the Incremental refresh work.

 

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This was originally the case but they changed this last year so that it was available to pro (see https://powerbi.microsoft.com/en-us/blog/incremental-refresh-is-generally-available/) 

Incremental refresh against Excel files only makes sense if you have a folder of Excel files and you are able to filter which files you open based on a date somehow. This is because Excel files do not have a query processing engine. The whole file has be transferred to Power BI and then decompressed and scanned in order to pull out part of the data and by the time you have done all that work it's just as easy and fast to load the whole file.

If you are loading multiple files then it sounds like one of your files or folders has a different structure. The error message is saying something about not finding a 'Date' column