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Error message in app or playing in browser



short question.


If I hit play in the "edit mode" there is no problem. The data is saved as I want to.


If I open the App on my smartphone or hit play in the browser the error message "There was a problem saving your changes. The data source may be invalid." occurs. 


What am I doing wrong?

Community Support
Community Support

Hi @Frederike198 ,


What is your data source?

How do you save your data into your datasource ? Do you use submitform or pactch function?

What formula expression do you use to save data?

More details about patch function:


Could you please turn off the off “Explicit column selection” option and “Improved app rendering” option in App settings ->Advanced settings panel and then close and reopen it again to test?

20190226Error message in app or playing in browser1.jpg


Hope this can be helpful.

Best Regards.


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