2. You should let customer tell your support to issue a ticket
3. You should let BA involve and Document what is the issue.
4. You should Document how you will solve it.
5. You should Document how you will test the new piece.
6. You should Document how to change the entire test procedure to fit your new test.
7. You should let somebody else to perform the test and Document the result
8. You should Document the profe that your new function haven't change old features.
9. You should Document anything that you have Documented above.