How To Fix L3177 - Entry for communication with R/2 does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: L3 -

• Message number: 177

• Message text: Entry for communication with R/2 does not exist

What causes this issue?

A transfer order created for an R/2 delivery note must communicate with
the R/2 System, that is, this transfer order must be transmitted to the
R/2 System so that the delivery note can be updated there with the WM
(Warehouse Management) data.

How to fix this error?

Define the movement type of the transfer order with activity type 002
for the communication with R/2.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message L3177 - Entry for communication with R/2 does not exist ?

  The SAP error message L3177, which states "Entry for communication with R/2 does not exist," typically occurs in the context of SAP systems that are trying to communicate with an R/2 system. This error indicates that the necessary configuration for communication between the SAP R/3 (or S/4HANA) system and the R/2 system is missing or incorrect.
  Cause:
  
  Missing Configuration: The communication settings for the R/2 system have not been defined in the SAP system.
  Incorrect Parameters: The parameters for the connection (like the logical system name, RFC destination, etc.) may be incorrectly set or not matching the R/2 system.
  Network Issues: There could be network connectivity issues preventing the SAP system from reaching the R/2 system.
  Authorization Issues: The user or system may not have the necessary authorizations to access the R/2 system.
  
  Solution:
  
  
  Check Configuration:
  
  Go to transaction SM59 to check the RFC destination settings. Ensure that the RFC destination for the R/2 system is correctly configured.
  Verify that the logical system name for the R/2 system is correctly defined in the SAP system.
  
  
  
  Define Logical System:
  
  If the logical system for the R/2 system does not exist, you can create it using transaction BD54. Make sure to assign the correct client and system parameters.
  
  
  
  Check Connection:
  
  Test the connection in SM59 to ensure that the SAP system can communicate with the R/2 system. Use the "Connection Test" feature to verify connectivity.
  
  
  
  Review Authorizations:
  
  Ensure that the user or system has the necessary authorizations to access the R/2 system. Check user roles and profiles.
  
  
  
  Network Configuration:
  
  If there are network issues, check firewall settings, network routes, and ensure that the R/2 system is reachable from the SAP system.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to R/2 communication for any specific configurations or updates that may be required.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  SM59: RFC Destinations
  BD54: Maintain Logical System
  BD87: Monitor IDoc Processing
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to R/2 communication.
  System Logs: Review system logs (transaction SLG1) for any additional error messages that may provide more context.
  
  By following these steps, you should be able to resolve the L3177 error and establish proper communication between your SAP system and the R/2 system.