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Invalid Mashup Expression using supplied values.

My flow was working fine, but from one moment to the next I started to fail with the following error

"Invalid Mashup Expression using supplied values.
  inner exception: Microsoft SQL: Can not assign a default value to a local variable.
  Must declare the scalar variable "

The error shows it when checking the execution in the trigger "insert a record", I already investigated and found nothing, you can help me.


Community Support
Community Support

Hi @salvarez,


Could you please share a screenshot of your flow's configuration?

Further, could you please show a bit more about the error message?


The error message told that you have provided invalid values within the triggers/actions in which the error occurred. Please check and see if the following article would help in your scenario:


If you could provide more details about your scenario, we could provide a proper workaround for you.



Best regards,


Community Support Team _ Kris Dai
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

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