How To Fix S1336 - Communication buffer is too small

SAP Error Message - Details

• Message type: E = Error

• Message class: S1 - Statistik / SAP-Monitor

• Message number: 336

• Message text: Communication buffer is too small

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message S1336 - Communication buffer is too small ?

  The SAP error message S1336, which states "Communication buffer is too small," typically occurs when the size of the communication buffer allocated for data transfer between the SAP application server and the database is insufficient to handle the volume of data being processed. This can happen in various scenarios, such as during data retrieval, updates, or when executing certain transactions.
  Cause:
  
  Large Data Volume: The most common cause is that the amount of data being processed exceeds the size of the communication buffer.
  Configuration Issues: The buffer size may not be configured correctly in the SAP system settings.
  Network Issues: Sometimes, network latency or issues can exacerbate the problem, leading to buffer overflow.
  Inefficient Queries: Poorly optimized queries that return large datasets can also trigger this error.
  
  Solution:
  
  
  Increase Buffer Size:
  
  You can increase the size of the communication buffer in the SAP system. This is typically done by adjusting the parameters in the instance profile.
  Look for parameters like rdisp/size_MB or rdisp/comm_buffer and increase their values. The exact parameters may vary based on your SAP version and configuration.
  
  
  
  Optimize Queries:
  
  Review and optimize any queries or reports that are causing the error. Ensure that they are not retrieving more data than necessary.
  Use selection criteria to limit the amount of data being processed.
  
  
  
  Check Network Configuration:
  
  Ensure that the network configuration is optimal and that there are no issues causing delays or packet loss.
  
  
  
  Monitor System Performance:
  
  Use transaction codes like ST02 (Buffer Monitor) and ST03 (Workload Analysis) to monitor system performance and identify bottlenecks.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may provide additional guidance or patches related to this error.
  
  
  
  Restart the Application Server:
  
  In some cases, restarting the application server may help clear temporary issues related to buffer overflow.
  
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for detailed information on buffer management and configuration.
  SAP Community: Engage with the SAP Community forums for insights and solutions shared by other users who may have encountered similar issues.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as ST02 (Buffer Monitor), ST03 (Workload Analysis), and SM21 (System Log) for troubleshooting.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP Basis team or consult with SAP support for further assistance.