What is communications user in SAP BC-SEC-USR - User Administration?

SAP Term: communications user

• Component: BC-SEC-USR

• Component Name: User Administration

• Description: A user type with the following properties: Individual system access personalized It is not possible to log on using SAP GUI. The user is therefore incapable of interaction through SAP GUI. Although the system checks whether the password has expired or is initial, the implementation of the requirement to change the password, which exists in principle, depends on the logon method interactive or non-interactive. Users are able to change their password themselves. Purpose: external RFC calls of individual human users.

Smart SAP Assistant

• Key Concepts: 
  A communications user is a type of user in SAP that is used to represent external systems or applications that need to communicate with SAP. This type of user is not associated with any particular person, but rather with a system or application. It is used to authenticate and authorize access to SAP systems and applications. 
  
  How to use it: 
  Communications users are created in the BC-SEC-USR User Administration component of SAP. The user must be assigned a role that defines the type of access they have to the system. The user must also be assigned a password that will be used for authentication. 
  
  Tips & Tricks: 
  It is important to ensure that communications users are given the least amount of access necessary for their purpose. This will help to ensure that the system remains secure and that unauthorized access is not granted. 
  
  Related Information: 
  For more information on communications users, please refer to the SAP Help Portal at https://help.sap.com/viewer/product/SAP_ERP/6.0/en-US/f3d7f9a8b2e14c8a9f3d7f9a8b2e14c8.html