How To Fix GW029 - &1 connections were deleted and removed from the connection table

SAP Error Message - Details

• Message type: E = Error

• Message class: GW - Message Texts for Gateway

• Message number: 029

• Message text: &1 connections were deleted and removed from the connection table

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 GW029 - &1 connections were deleted and removed from the connection table ?

  The SAP error message GW029 indicates that certain connections have been deleted and removed from the connection table. This error typically occurs in the context of the SAP Gateway, which is responsible for handling communication between SAP systems and external applications.
  Cause:
  
  Timeouts: Connections may be removed due to inactivity or timeouts. If a connection remains idle for a certain period, the system may automatically delete it to free up resources.
  Resource Management: The SAP Gateway may have a limit on the number of concurrent connections. If this limit is reached, older or inactive connections may be removed.
  Configuration Issues: Incorrect settings in the SAP Gateway configuration can lead to premature deletion of connections.
  Network Issues: Network interruptions or failures can cause connections to be dropped, leading to this error message.
  System Maintenance: During system maintenance or updates, connections may be intentionally closed.
  
  Solution:
  
  Check Connection Settings: Review the configuration settings for the SAP Gateway, particularly those related to connection timeouts and limits. Adjust them as necessary to accommodate your usage patterns.
  Monitor Connection Usage: Use transaction codes like SMGW (Gateway Monitor) to monitor active connections and identify any patterns that may lead to premature deletion.
  Increase Timeout Values: If timeouts are causing the issue, consider increasing the timeout values in the SAP Gateway configuration.
  Network Stability: Ensure that the network connection between the SAP system and external applications is stable and reliable.
  Review Logs: Check the system logs for any additional error messages or warnings that may provide more context about why the connections were deleted.
  Restart Gateway: In some cases, restarting the SAP Gateway can help resolve temporary issues.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SMGW for monitoring the Gateway and SM21 for checking system logs.
  SAP Notes: Search for SAP Notes related to GW029 for any specific patches or updates that may address known issues.
  Documentation: Review the official SAP documentation for the Gateway to understand best practices for configuration and management of connections.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with SAP support or your system administrator for further assistance.