Are you sure you created the nested object and set the reference with the main object? The main object you should create with a custom microflow that also creates the nested object and already set the reference. Then when you show the object in the edit form you will see the the referenced object is also editable. Note though that you also need to commit both objects either in a custom save microflow or in an on change microflow.
This should not be the case.
I would check the write access rules.
the highlighted object is the main object
here is the microwflow
I commited both objects
here's how it looks
the highlighted fields represent the nested view
Can you tell me what I did wrong please
Does your user have write rights on the entity (in your domain model)?
It worked! thanks guys I did not create the main object in the first place I only created the second objects
so I did what you said and passed the new created object