How To Fix 00463 - Communication system error: remote allocate failed

SAP Error Message - Details

• Message type: E = Error

• Message class: 00 -

• Message number: 463

• Message text: Communication system error: remote allocate failed

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 00463 - Communication system error: remote allocate failed ?

  The SAP error message "00463 Communication system error: remote allocate failed" typically indicates a problem with the communication between the SAP application server and the database or another system component. This error can arise due to various reasons, including network issues, resource allocation problems, or configuration errors.
  Causes:
  
  Network Issues: Problems with the network connection between the SAP application server and the database server can lead to communication failures.
  Resource Limitations: The database server may be running out of resources (e.g., memory, connections) to allocate for the request.
  Configuration Errors: Incorrect configuration settings in the SAP system or the database can lead to communication issues.
  Database Locking: If the database is locked or busy with other transactions, it may not be able to allocate resources for the new request.
  Firewall or Security Settings: Firewalls or security settings may be blocking the communication between the SAP system and the database.
  
  Solutions:
  
  Check Network Connectivity: Ensure that there are no network issues between the SAP application server and the database server. You can use tools like ping or traceroute to diagnose connectivity problems.
  Monitor Resource Usage: Check the resource usage on the database server. Ensure that there are enough memory and connections available. You may need to increase the resources or optimize the database performance.
  Review Configuration Settings: Verify the configuration settings in both the SAP system and the database. Ensure that they are correctly set up for communication.
  Database Locks: Check for any locks on the database that may be preventing new connections. You may need to resolve these locks or wait for them to be released.
  Firewall Settings: Review firewall settings to ensure that they are not blocking the necessary ports for communication between the SAP system and the database.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes or patches that may address this specific error.
  
  Related Information:
  
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance. They can provide more specific guidance based on your system configuration and logs.
  System Logs: Review the system logs (transaction SM21) and developer traces (transaction ST22) for any additional error messages or information that may help diagnose the issue.
  Database Logs: Check the database logs for any errors or warnings that may indicate issues with resource allocation or connectivity.
  
  By following these steps, you should be able to identify and resolve the cause of the "00463 Communication system error: remote allocate failed" message in your SAP system.