Rest API call to extract Status Transition dates

Question

I've been using the changeLog expanded rest api call to our jira instance.

During the fields investigation, I discovered on one issue the transitions expanded has 13 recorded status transitions. These are recorded under the expand=transitions field.

However, there is no record of these status transitions in the expand=changelog histories.

Can someone explain why this is?

And if the task did actually transition through these 13 status changes, how would I find the date and time and user who made these transitions?

nikita_3ths78 · Accepted Answer

It seems the transitions field expanded is like a lookup table, and these are all the available transitions for the issue in question. If I am incorrect please let me know, this is what it seems to be though.