There is an update note >>>

"From Dev 8.5 2020 12 21 b316 ->

Bug fixed/feature added:
REST API >> Cannot sort by Index that is not the sames as a field name

Added "keyname=ActCodeForSale"


If you specify sortfield it works as before

If you specify keyname and sortfield it will use the key "keyname" and apply any "range" argument to "sortfield"
if you specify only keyname then "range" should not be specified and is not available

What worked before:
http://hostname.domain.top/api/1/INVc?sort=Group


What is now added (example)


curl --user SJ:Sample99 -X GET 'http://localhost:5557/api/1/INVc?sortfield=ActCodeForSale&&fields=Code,Name'
you have the example as txt for the above from and the original.

original.txt -> how it looked before
test.txt -> how it looks like with sorting (simplified)"

Is there more specific manual or other documentation about this?
How is working sortfield and what is ActCodeForSale?