You can trace Rest Calls Post Function, Confluence Post Function, and Listeners logs here. This logs ordered by newest to oldest.
If you want to re-send the REST call, you can click the "RE-send REST" button.
You can expand rows and see details of logs. Like URL, Authentication, Headers, Request Body, called RESTs or Page Link for Create Confluence Page post function.
Also, you can click icon which is next to the colon and filter that column.
Note: Source name and Issue key are case sensitive.