How To Fix DLALR400 - No link confirmation from R/2

DLALR400 - Overview

• Message type: E = Error

• Message class: DLALR - Data link to central systems

• Message number: 400

• Message text: No link confirmation from R/2

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 DLALR400 - No link confirmation from R/2 ?

  The SAP error message DLALR400 No link confirmation from R/2 typically occurs in the context of communication between SAP R/3 and SAP R/2 systems. This error indicates that the R/3 system did not receive a confirmation from the R/2 system for a link or connection that was expected.
  Causes:
  
  Network Issues: There may be network connectivity problems between the R/3 and R/2 systems, preventing the confirmation message from being sent or received.
  Configuration Errors: Incorrect configuration settings in either the R/3 or R/2 system can lead to communication failures.
  System Downtime: The R/2 system may be down or not responding, which would prevent it from sending the necessary confirmation.
  Protocol Mismatch: There may be a mismatch in the communication protocols or settings between the two systems.
  Timeouts: The connection may be timing out due to long processing times or delays in the R/2 system.
  
  Solutions:
  
  Check Network Connectivity: Ensure that there are no network issues between the R/3