How To Fix IDOC_ADAPTER407 - Communication Error: '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: IDOC_ADAPTER - Messages for the IDoc Adapter

• Message number: 407

• Message text: Communication Error: '&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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message IDOC_ADAPTER407 - Communication Error: '&1' ?

  The SAP error message IDOC_ADAPTER407, which indicates a communication error, typically occurs when there is a problem with the communication between the SAP system and the external system or application that is supposed to receive or send IDocs (Intermediate Documents). The message will often include a specific error code or description in place of '&1', which can provide more context about the nature of the communication issue.
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP system and the external system.
  Configuration Errors: Incorrect configuration settings in the IDoc adapter or in the communication parameters (like RFC destinations).
  Firewall Restrictions: Firewalls may be blocking the communication ports required for IDoc transmission.
  Service Availability: The external system may be down or not available to receive the IDocs.
  Protocol Mismatch: There may be a mismatch in the communication protocol being used (e.g., HTTP, FTP, etc.).
  Authorization Issues: The user credentials used for communication may not have the necessary permissions.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the network connection between the SAP system and the external system is stable and operational. You can use tools like ping or traceroute to diagnose connectivity issues.
  Review Configuration: Verify the configuration settings in the SAP system for the IDoc adapter. Check the RFC destinations and ensure they are correctly set up.
  Firewall Settings: Check the firewall settings to ensure that the necessary ports for IDoc communication are open and not being blocked.
  Monitor External System: Ensure that the external system is up and running. Check logs or system status to confirm its availability.
  Check Protocol Settings: Ensure that the correct communication protocol is being used and that both systems are configured to use the same protocol.
  Review User Permissions: Check the user credentials being used for the communication and ensure they have the necessary authorizations to send/receive IDocs.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to IDOC communication errors for specific guidance and troubleshooting steps. You can search the SAP Support Portal for relevant notes.
  Transaction Codes: Use transaction codes like WE02 (IDoc display) and WE05 (IDoc list) to monitor IDocs and check their status.
  Logs: Review the application logs (transaction SLG1) for more detailed error messages that can provide additional context.
  IDoc Monitoring: Use transaction WE19 for testing IDocs and WE20 for partner profile configuration to ensure that the settings are correct.
  
  If the issue persists after following these steps, it may be beneficial to engage with your SAP Basis team or SAP support for further assistance.