How To Fix PMMO_BASIS011 - Unknown RFC communication failure

SAP Error Message - Details

• Message type: E = Error

• Message class: PMMO_BASIS - Messages for PMMO Basis Objects

• Message number: 011

• Message text: Unknown RFC communication failure

What causes this issue?

An RFC call was unexpectedly terminated. No specific reason is known for
the communication breakdown.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message PMMO_BASIS011 - Unknown RFC communication failure ?

  The SAP error message PMMO_BASIS011, which indicates an "Unknown RFC communication failure," typically arises when there is an issue with Remote Function Call (RFC) communication between SAP systems or between an SAP system and an external system. This error can occur in various scenarios, such as during data transfer, when calling remote functions, or when accessing external services.
  Causes:
  
  Network Issues: Problems with the network connection between the SAP systems or between the SAP system and external systems can lead to RFC communication failures.
  Configuration Errors: Incorrect configuration of RFC destinations in the SAP system can cause communication failures. This includes incorrect settings in transaction SM59.
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations to perform the requested operation.
  System Availability: The target system may be down or not reachable due to maintenance or other issues.
  Firewall Restrictions: Firewalls or security settings may block the necessary ports for