How to manage child’s iPhone from parent’s Macbook

I have set up my child's iPhone using my **icloud.com** apple-id. So we now have: * Child apple id: **child@icloud.com** * Parent apple id: **parent@icloud.com** During the setup I received a code on my MacBook that I had to type in the iPhone. After setup completed I cannot see my child's account in my MacBook's parental controls. So now how can I set time limits, allow apps and so on? One possible reason could be that the apple-id associated with my MacBook was a different one from the apple-id I used to set up the iPhone. The apple-id I used to set up the iPhone was set up as one of the internet accounts on my MacBook. So the MacBook know about two ids: * MacBook apple-id used for appstore: **othermail@example.com** * Parent's other apple-id: **parent@icloud.com** I have tried to fix this by removing the account that was associated with the previous apple-id and removing and then adding the icloud.com address I used to install the child's iPhone. This did not fix the problem. All I want is to be able to manage my child's iPhone, how can I do this from a MacBook? Is that even possible or can the iPhone only be managed from the iPhone itself using the 4 digit screen code I had to set up? Also, is the parent side parental control tied to my apple-id or to my device? And in case of the former, does that mean I can access them (ie manage my child's iPhone) from any device I login and add my iCloud account (**parent@icloud.com**) to?