How To Fix /IWNGW/CM_BEP_RT018 - User does not have authorization to invoke RFC

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWNGW/CM_BEP_RT -

• Message number: 018

• Message text: User does not have authorization to invoke RFC

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWNGW/CM_BEP_RT018 - User does not have authorization to invoke RFC ?

  The SAP error message /IWNGW/CM_BEP_RT018 indicates that a user does not have the necessary authorization to invoke a Remote Function Call (RFC). This typically occurs in scenarios where a user is trying to access a service or function that requires specific permissions that have not been granted.
  Cause:
  
  Missing Authorizations: The user lacks the required authorizations in their user profile to execute the RFC.
  Role Assignment: The user may not have been assigned the appropriate roles that include the necessary authorizations.
  Authorization Object: The specific authorization object related to the RFC call may not be included in the user's roles.
  System Configuration: There may be system-level configurations that restrict access to certain RFCs.
  
  Solution:
  
  
  Check User Authorizations:
  
  Use transaction SU53 immediately after the error occurs to analyze the authorization check failure. This will show which authorization objects are missing.
  Alternatively, you can use transaction SU01 to view the user's profile and roles.
  
  
  
  Assign Required Roles:
  
  If the user is missing roles, assign the necessary roles that include the required authorizations for the RFC.
  You may need to work with your SAP security team to ensure the correct roles are assigned.
  
  
  
  Modify Authorization Objects:
  
  If the required authorization objects are not included in the assigned roles, you may need to modify the roles to include them.
  This can be done using transaction PFCG to adjust the role definitions.
  
  
  
  Consult with Security Team:
  
  If you are not authorized to make changes, consult with your SAP security team or administrator to ensure that the user has the correct permissions.
  
  
  
  Testing:
  
  After making changes, have the user log out and log back in to ensure that the new authorizations take effect.
  Test the RFC call again to confirm that the issue is resolved.
  
  
  
  Related Information:
  
  Authorization Objects: Common authorization objects related to RFCs include S_RFC, S_RFC_ADM, and S_RFC_CUST. Ensure that the user has the necessary permissions for these objects.
  Transaction Codes:
  
  SU01: User maintenance
  PFCG: Role maintenance
  SU53: Display authorization check
  
  
  Documentation: Refer to SAP documentation for detailed information on authorization management and best practices for role assignments.
  
  By following these steps, you should be able to resolve the authorization issue related to the RFC invocation.