Impact on existing closed/resolved tickets if remove the request type they were created with

[Elaine McMillan]

I want to clean up our request types in JSM so what will be the impact other then the request type field will become empty if I remove the request types from which the closed/resolved tickets were created using. 

[Riley Venable]

Removing request types from JSM will cause any automation rules configured for the removed request type to no longer work. Additionally, any closed/resolved tickets created using the removed request type will have the request type field become empty.