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Error calling REST web service. 500



The error below occurs when running the robot through Management Console and prevents the robot execution to be completed,

Error from the Call REST Web Service action. Error calling REST web service. 500 loading from http://<MC URL>:<port>/ManagementConsole/rest/run/<project>/<robot name>


This can occur when running a robot in Management Console (MC) that performs a Call REST Web Service step (CallREST) to another robot with only one CRE available.

When a robot attempts to execute a CallREST to call another robot, it will attempt to start this second robot and will require an additional CRE license.


Assign more CRE license to the Cluster or make sure that there's at least two available.

Applies to:  

Product Version Category
Kofax RPA All Call REST 
Kofax RPA All Licensing



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