What is RAP ETAG master entity in SAP (BC-ESI-RAP - RESTful ABAP Programming Model)?

SAP Term: RAP ETAG master entity

• Component: BC-ESI-RAP

• Component Name: RESTful ABAP Programming Model

• Description: RAP BO entity that has its own ETag field defined using the keyword etag master MasterField.

Smart SAP Assistant

• Key Concepts: 
  RAP ETAG master entity is a component of the BC-ESI-RAP RESTful ABAP Programming Model. It is a master entity that stores the ETAG (Entity Tag) values for all the entities in the system. The ETAG is a unique identifier for each entity and is used to detect changes in the data. 
  
  How to use it: 
  The RAP ETAG master entity can be used to detect changes in the data of an entity. When an entity is updated, its ETAG value is changed and this change can be detected by comparing the current ETAG value with the one stored in the RAP ETAG master entity. This allows applications to detect changes in the data and take appropriate action. 
  
  Tips & Tricks: 
  When using the RAP ETAG master entity, it is important to ensure that the ETAG values are updated correctly. This can be done by using the appropriate APIs provided by SAP. Additionally, it is important to ensure that the ETAG values are stored securely and not exposed to unauthorized users. 
  
  Related Information: 
  For more information on the BC-ESI-RAP RESTful ABAP Programming Model, please refer to SAP's official documentation at https://help.sap.com/viewer/product/BC-ESI-RAP/latest/en-US.