Redirect to interface

Hi ,

could you please  let me know how is the your response which you got from integration ? and if your integration response has setup with return raw response body then you have to use a!fromJson(pv!body).value to extract the values from the body...

Hi,

Can you share screenshot where ac!error.body field is used inside User input task?

Fist locate where in your process model you have this expression. Then replace that with property(ac!error,"body,{})

The error is happening because you're trying to use ac!error.body in the Data Outputs tab of your User Input Task, but Activity Class parameters (ac!) aren't available in User Input Tasks - they only exist in Script Tasks and other system nodes. In User Input Tasks, you can only map rule inputs (ri!) from your interface to process variables (pv!).
To fix this, remove the ac!error.body reference from your Data Outputs tab. Instead, capture the error in a Script Task or Integration node before the User Input Task, save it to a process variable there, then pass that process variable to your interface as a rule input. This way, you're only mapping ri! values to pv! values in the Data Outputs, which is the correct approach.