How To Fix /SAPAPO/ATP400 - Error occurred when importing from the shared buffer: &1, &2

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/ATP -

• Message number: 400

• Message text: Error occurred when importing from the shared buffer: &1, &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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/ATP400 - Error occurred when importing from the shared buffer: &1, &2 ?

  The SAP error message /SAPAPO/ATP400 indicates that there was an issue when importing data from the shared buffer in the Advanced Planning and Optimization (APO) module, specifically related to Available-to-Promise (ATP) checks. The parameters &1 and &2 typically provide additional context about the error, such as the specific object or data that caused the issue.
  Causes:
  
  Data Inconsistency: There may be inconsistencies in the data stored in the shared buffer, which can occur due to system errors, incomplete updates, or data corruption.
  Buffer Overflow: The shared buffer may be full or not able to accommodate the incoming data, leading to import failures.
  Configuration Issues: Incorrect configuration settings in the APO system can lead to problems when accessing or importing data from the shared buffer.
  System Performance: High system load or performance issues can cause timeouts or failures when trying to access the shared buffer.
  Transport Issues: If there are ongoing transports or changes being made to the system, it may lead to temporary inconsistencies.
  
  Solutions:
  
  Check System Logs: Review the system logs (transaction SLG1) for more detailed error messages that can provide insights into the root cause.
  Buffer Management: Use transaction /SAPAPO/BUFFER to check the status of the shared buffer. You may need to clear or refresh the buffer if it is full or inconsistent.
  Data Consistency Check: Run consistency checks on the relevant data objects to ensure that there are no inconsistencies. This can be done using transaction /SAPAPO/CC (Consistency Check).
  Configuration Review: Verify the configuration settings in the APO system to ensure they are set up correctly for ATP checks.
  System Performance Monitoring: Monitor system performance and resource usage to identify any bottlenecks that may be affecting the shared buffer.
  Restart Services: In some cases, restarting the relevant APO services or the entire system may resolve temporary issues.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the /SAPAPO/ATP400 error. You can search for relevant notes in the SAP Support Portal.
  Documentation: Review the official SAP documentation for APO and ATP to understand the configuration and operational guidelines.
  Community Forums: Engage with SAP community forums or user groups to see if others have encountered similar issues and what solutions they found effective.
  
  If the problem persists after trying the above solutions, it may be necessary to involve SAP support for further investigation and assistance.