You should create a few configurations according to the number of values under your custom field 'Reported group'.
Configuration. eg, I have 4 values under my custom field 'Departments' [Dep1, Dep2, Dep3, Dep4]. Need to create 4 SLA configurations either that have to start from the first value and stop with another.
Samples.
The same logic for the third & fourth configs.
Clarifications.
As soon as a particular Jira issue has the first value Dep1, the first config runs until this issue is changed a value to another one. When the custom field changed Dep1 → Dep2, the second config run calculates a time, etc.On the main page (grid) you should put only these 4 SLAs. Just fill in the necessary amount of configs.
How to figure out how much time an issue spent time being per each custom field value? The add-on calculates the remaining time (based on the time goal you input in the config) & elapsed time. The elapsed time lets you know the exact time an issue spent.
In my case, the issue QA-99 spent 1h 35m being under the Dep2 custom field value. In the mirror situation, your team A spent N hours N min.
To get only elapsed time data you are able to do export and keep there only Elapsed time columns
Furthermore, you can set the time for goals accordingly to the team’s competence. For team A a time limit is equal to 10h, for team B = 7h team C = 1h, etc.
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