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Helper III
Helper III

unknown error occured



I am patching data form a collection to an Excel file located on my One drive.

My app ahs been working fine for the last 2 months. But since yesterday, when I patch the data I sometimes get a message in a red band saying "an unknown error occured".

WHen the patch was finished, I checked, and the data had not been patched in my Excel file.

It was lost!!!

Does anyone know where this error is coming from / how to solve it?

And how to avoid losing data. This is really a big problem...

Many thanks,


@seadude.  I'm happy to post my findings.  I don't know how enlightening it will be.  I had a collection that was something like


Company: Company1,
Commodity: Commodity1,
Pack: Pack1,
Label: Label,
CrewSize: CrewSize,


In my brilliance, I named my dataset columns and app field columns the same thing so I didn't realize I was referencing the wrong thing until I changed my app field names to company1.  After that, it fixed the problem


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