Hi,
To achieve your requirement proceed as below
- Let us say you have an input field in comp A and its bound to attribute PERNR of interface node ND_INPUT
- Now, you use the comp A inside comp B as component usage
- Go to component controller of comp B and map context node ND_INPUT from interface controller to comp B's context i.e. external context mapping
- Now, you can directly read the context node from component controller of comp B whenever required, as data flows from comp A to comp B vice-versa
Regards,
Rama