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

/SAPAPO/ATP400 - Overview

• 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.

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 /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