It can be done by using OOB Assignment Rule.
In the Applies to section, select the table as Incident, and in condition, select category (for which you want it to be auto assigned).
Then in the assign to section, select the user/ group which you wants to assign the incident.
If you want dynamic assignment, then go to the script section and add your code accordingly (this is a server side script).
If my response helped please mark it as helpful.
Hi @MohitS532478214 ,
There are two methods to achieve this
Steps you need to follow to achieve: Populate assignment group based on category.
Method 1:
Step 1: Navigate to application navigator & click on assignment.
Step 2: Create the assignment rule based on category and subcategory
Step 3: Now test this scenario by creating an incident record on submission of record it will be auto populated.
Method 2:
Step1: Navigate to application navigator and search assignment lookup rules.
Step 2: Create assignment lookup rule
Step3: Test the record by creating new incident.
Please accept my solution if it works for you.
Thanks
Prashant
