How To Fix WFRE_CON201 - Communication failure occured by data transfer for package &1

SAP Error Message - Details

• Message type: E = Error

• Message class: WFRE_CON - Messages for SAP R/3 to SAP F&R Connection

• Message number: 201

• Message text: Communication failure occured by data transfer for package &1

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message WFRE_CON201 - Communication failure occured by data transfer for package &1 ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WFRE_CON201: Communication failure occurred by data transfer for package &1
  
  Cause:
  This error typically occurs in SAP Workflow when there is a communication problem during the data transfer process for a specific package. The package mentioned in the message (&1) is the one for which the data transfer failed.
  Common causes include:
  
  Network issues or interruptions between the SAP system and the destination system.
  Problems with the RFC (Remote Function Call) connection used for communication.
  The target system or client is not reachable or is down.
  Incorrect or missing configuration in the workflow or RFC destination.
  Authorization issues preventing data transfer.
  Timeouts or performance issues causing the communication to fail.
  
  
  Solution:
  
  
  Check Network and System Availability:
  
  Verify that the target system or client is up and reachable.
  Use transaction SM59 to test the RFC destination used for the data transfer.
  Ensure there are no network interruptions or firewall blocks.
  
  
  
  Check RFC Destination:
  
  In SM59, test the connection for the RFC destination related to the workflow package.
  If the connection test fails, investigate the connection parameters, user credentials, and network settings.
  
  
  
  Review Workflow Configuration:
  
  Check the workflow container and the package configuration to ensure the correct RFC destination is used.
  Verify that the workflow is correctly configured to communicate with the target system.
  
  
  
  Check Authorizations:
  
  Ensure that the user under which the RFC connection runs has the necessary authorizations to perform the data transfer.
  
  
  
  Check System Logs:
  
  Use SM21 to check system logs for any related errors or warnings.
  Check the workflow logs in SWI1 or SWI2_FREQ for more detailed error information.
  
  
  
  Check for Timeouts:
  
  If the communication fails due to timeouts, consider increasing the timeout settings in the RFC destination or optimizing the data transfer process.
  
  
  
  Restart or Reprocess Workflow:
  
  Sometimes, restarting the workflow or reprocessing the failed step can resolve transient communication issues.
  
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59 – RFC Destinations
  SWI1 – Work Item Selection
  SWI2_FREQ – Workflow Log
  SM21 – System Log
  
  
  
  SAP Notes:
  
  Search for SAP Notes related to WFRE_CON201 for any patches or known issues.
  Example SAP Note: 1234567 (hypothetical) might provide specific fixes or workarounds.
  
  
  
  Workflow Communication:
  
  This error is related to the communication layer in SAP Workflow, especially when workflows span multiple systems or clients.
  
  
  
  
  If the problem persists after these checks, consider involving your Basis team to analyze network traces or system dumps, or contact SAP Support with detailed logs and system information.
  
  Let me know if you need help with specific steps or further troubleshooting!