Time - Configuring Categories, Types, and Codes
There are three types of time: Time linked to cases, time linked to outreaches, and time linked to neither. The last type is often called "Other" time or "Support Activity" time, etc.
Each type of timeslip usually has an Time Activity Type. Case timeslips generally also have a Time Activity Code.
But ultimately, the configuration is up to each site. More detail is available on the Time - Customizing Time Entry page.
Tip: In Admin > Lookups, make sure you are looking at "Time Activity Types" and "Time Activity Codes", not "Activity Types" and "Activity Codes".
Frequently asked question: "I added some new Time Activity Codes, but they don't show up when adding case time. Why?"
Answer: When you add Time Activity Codes, you need to also edit the Time Activity Types. On the Time Activity Types list, click on Case Activity (or it may be called Case Related) value. After the fields at the top of the page populate, select your new Activity Codes, then click Continue to save.