To gain a better understanding of BOD verbs and their usage, it is crucial to first understand the system of record (SOR) concept.
A piece of information such as a customer address, or a document, such as Purchase Order, is maintained, or owned, by only one system – the system of record (SOR). The SOR publishes all changes for that piece of information. Other applications that want to add or change that piece of information must make a request to the SOR.
The BOD message used will vary and be based on the system that owns a specific business object.