What is cross-BO association in SAP BC-ESI-RAP - RESTful ABAP Programming Model?

SAP Term: cross-BO association

• Component: BC-ESI-RAP

• Component Name: RESTful ABAP Programming Model

• Description: An association between entities of different business objects.

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• Key Concepts: 
  Cross-BO association is a feature of the BC-ESI-RAP RESTful ABAP Programming Model that allows for the association of two different business objects (BOs) in a single request. This allows for the creation of complex data structures that can be used to represent relationships between different BOs. 
  
  How to use it: 
  Cross-BO association can be used to create complex data structures that represent relationships between different BOs. To do this, the user must first define the relationship between the two BOs in the ABAP programming model. This is done by creating an association object that contains the necessary information about the relationship between the two BOs. Once this is done, the user can then use this association object to create a request that contains both BOs and their associated data. 
  
  Tips & Tricks: 
  When using cross-BO association, it is important to ensure that all of the necessary information about the relationship between the two BOs is included in the association object. This will ensure that all of the data associated with each BO is included in the request and that any changes made to one BO will be reflected in the other. 
  
  Related Information: 
  For more information on cross-BO association and how to use it, please refer to SAP's documentation on BC-ESI-RAP RESTful ABAP Programming Model.