For complex idempotent requests (for example, when you have many nested options for a report), the GET verb has a significant number of limitations - there’s a max limit to the data you can send, and while you can pass in a body to a GET request, it is considered non-standard. Sometimes developers will use a POST method to get around this, but this violates REST API conventions even further.
To this end, the REPORT verb has been created to address these limitations for this exact scenario (as described in more detail here: Dropbox starts using POST, and why this is poor API design.). Can this HTTP method please be added to Postman so we can better test our endpoints?
For reference, here are the RFCs for the REPORT HTTP method amongst others: Hypertext Transfer Protocol (HTTP) Method Registry