@heatbr Yes absolutely. I definitely know what’s going on. I am not trying to solve a specific issue/example. My question really was: is there a recommended/conventional way to send parents and childs records back to the server “in general”? If you embed records, there are many instances where problems occur (at least in my experience). Cf case 3- above for instance. There is also the issue with records being duplicated (Proposal/Fix: Saving new embedded records creates duplicates), etc.
Basically I am having so many issues, I am thinking I just don’t tackle it the right way and there’s got to be another one. I just don’t know what it is. Our app is fairly complex with a lot of relationships between models so the challenge might be exacerbated, but still.