Message type: E = Error
Message class:  /IWNGW/CM_BEP_RT -  
Message number: 018
Message text: User does not have authorization to invoke RFC
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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,
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