Curious question, Do commerce API's execute/trigger different endpoints internally based on the SCA version that is making a request? I'm asking that since we are trying to fix a sort item issues that seems to be solved in a newer minor version (We are in 2020.1.8 and it was fixed in 2020.1.9). Right now, we are evaluating the impact to make an upgrade to get the fix since it seems that it was implemented in the commerce API itself (which is a black box for us) and no in the SCA code.

No, the commerce API is the same no matter the SCA version. The commerce API version is the same than the NetSuite version. The use case for different endpoints could be for example if you are a partner and have a customer that has been upgraded to NS 23.1 and another one still on NS22.2 .

Oh I see! Thanks so much for the clarification @Flo!