ADF: Capture Previous Task Details throws error

Question

I am trying to capture the error from failed activity in a variable activity or in web request activity for sending email. I am using “@activity().error.message” to capture it. It is throwing the attached error.

Any help is appreciated to resolve this. Thank you.

Web Activity dynamic content:

Answer 1

Please try to use this expression:

@activity('Activity name').Error.Message

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Update

I test this expression and it works fine.