You have given the value 'Complete' which is not correct
The Teamcenter SOA documentation shows the following for the performAction request:
Here's an example of completing a review task
Hi Colin,
Thanks for sharing an example. I need clarity on the action value that you have mentioned in your screenshot. I have updated my action value as 'Complete' but it was not helping me to complete my Do task, Is there any other value or real name that should be defined to complete the task. I have shared my microflow and Perform action screenshots.
Microflow Screenshot:
Perform Action Screenshot: