Issue Summary

This is reproducible on Data Center: yes

Deleting hidden request types in Jira Service Management 10.x gives Error

We couldn't delete the request type

Refresh the page and try again

Steps to Reproduce

1. Create a hidden request type in below screen
   JSM Project>Project Settings>Request Type
2. When you try to delete this hidden Request Type, you get an Error like below
   
3. Checking the respective DELETE request in the Browser Network logs , it can be seen that there is an invalid character "NaN" in the REST call triggered to "Delete" request type. Below is the REST call getting triggered

   /rest/servicedesk/1/servicedesk/10001/request-type-groups/NaN/request-types/70 

   

Expected Results

Hidden Request Type should delete successfully.

Actual Results

Hidden Request Type can not be deleted and their is Error.

Workaround

Workaround 1

• Inspect the Network logs and replicate the problem.
• Look at the failing request similar to the screenshot above and note down the URL.
  • In the URL, replace "NaN" with "hidden" and then hit the DELETE Request using a REST Client like CURL or POSTMAN.
  • Below is the sample screenshot from POSTMAN REST Client.
    

Workaround 2

• You can also use the Delete request type REST API call.