Take a snapshot of VMware Aria Suite Lifecycle, if the request is a day 2 action operation on a VMware Aria Suite product or VMware Identity Manager take a snapshot of the other appliance too.
Select the specification for 2. private-internal-api
Search the following API: Request Controller and then click on POST /lcm/request/api/request/cancel/{requestId}
Click on Try it out.
Add the request ID on the requestId field, then click on Execute.
Validate the results.