See attached for a suggested list of codes, our advice is to start with a short list and expand as needed.
The category should be set to Corrective Maintenance for all break fix calls to track response times correctly, more here.
Note that we use a lot of ZD call types for equipment installs managed through the dispatch console, more here. Not needed otherwise.
You can use the “Bulk Update” under the Tools option to do a search and replace ie (where service code = OEM) and update it to “Toner”.