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Error "Expression SectorID eq null is not supported"

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Hello!

On my PowerApps application, I have a dropdown that has its allowed values based on the selected value of another dropdown, using the filter function below:

Filter([@MasterData_Subcategory]; SectorID = DataCardValue14.Selected.CategoryID)

However, the following error shows when I run the app: "Expression SectorID eq null is not supported"

I don't understand why this error is showing up since there are no null values in any of the tables (I've attached both in this post) and every value has a match, ensuring that there are no comparisons that would return null values. Could you help me with this? Thanks!

tables.xlsx

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WarrenBelz 153,150 Most Valuable Professional on at

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Hi @Anonymous ,

This post may assist - one of the (many) issues with using Excel as a data source when things get a bit complex.

Please click Accept as solution if my post helped you solve your issue. This will help others find it more readily. It also closes the item. If the content was useful in other ways, please consider giving it Thumbs Up.

Visit my blog Practical Power Apps

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MickHtoo 2 on at

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This isn't a fix so much as a way around it. I was having the same issue with Power Apps not liking a blank dropdown box while the data was being uploaded into the App from SharePoint:

The error had no effect on the App itself and worked fine (but not having a blank dropdown was not aesthetically pleasing).

However, by changing the following to Blank()

it stops the 'error eq null' happening until my data is loaded.

Not my brilliant idea, found it on YouTube here: Power Apps OnError to capture, suppress, and report all errors

Hope that helps (and the Power Apps crew doesn't remove that option).

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