How to connect PowerApps and Flow is covered in this article: https://docs.microsoft.com/en-us/powerapps/maker/canvas-apps/using-logic-flows. Suggest you read the article and let me know if you have any questions. Also, if you want help on your specific situation rather than generalized help please supply more information.
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Hi @Galina73 ,
Could you please share a screenshot about your flow's configuration?
Which "Ask in PowerApps" parameters do you define within your flow?
More details about adding a flow connection within an app, please check the following article or video:
Based on the error message screenshot that you mentioned, I think there is something wrong with the value you provided for the argument within the PowerAppsbutton_3.Run(...) function.
The value you provided for the argument(s) within the PowerAppsbutton_3.Run(...) function must match the the data type of these parameters you defined within your flow.
Please check if you have provided a proper value for the argument within the PowerAppsbutton_3.Run(...) function.
Hi @Galina73 ,
Please consider re-create a new app on your side, then re-add the new flow connection in this new app, and bind the flow fire event to a button, try your formula again, check if the issue is solved.
Check it out!
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