How To Fix /SAPAPO/SNP402 - Error occurred while reading alternative resources

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/SNP -

• Message number: 402

• Message text: Error occurred while reading alternative resources

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/SNP402 - Error occurred while reading alternative resources ?

  The SAP error message /SAPAPO/SNP402 indicates that there was an issue while reading alternative resources in the SAP Advanced Planning and Optimization (APO) module, specifically in the Supply Network Planning (SNP) component. This error can occur due to various reasons, and understanding the cause is essential for troubleshooting.
  Causes:
  
  Missing or Inactive Resources: The alternative resources that are being referenced may not exist or may be inactive in the system.
  Configuration Issues: There may be configuration issues in the resource master data or in the planning book settings.
  Authorization Issues: The user may not have the necessary authorizations to access the resource data.
  Data Inconsistencies: There could be inconsistencies in the master data or transactional data related to the resources.
  System Performance Issues: If the system is under heavy load, it may lead to timeouts or failures in reading data.
  
  Solutions:
  
  
  Check Resource Master Data:
  
  Verify that the alternative resources exist in the system and are active.
  Ensure that the resource master data is correctly configured.
  
  
  
  Review Planning Book Settings:
  
  Check the settings of the planning book to ensure that it is correctly set up to read the alternative resources.
  
  
  
  Authorization Check:
  
  Ensure that the user has the necessary authorizations to access the resource data. This can be checked with the security team or by reviewing the user roles.
  
  
  
  Data Consistency Check:
  
  Run consistency checks on the master data to identify any inconsistencies that may be causing the issue.
  
  
  
  System Performance Monitoring:
  
  Monitor the system performance to ensure that it is not overloaded. If necessary, consider optimizing the system or scheduling heavy jobs during off-peak hours.
  
  
  
  Debugging:
  
  If the issue persists, consider debugging the process to identify the exact point of failure. This may require the assistance of a technical consultant.
  
  
  
  SAP Notes:
  
  Check for any relevant SAP Notes that may address this specific error. SAP frequently releases updates and patches that may resolve known issues.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like /SAPAPO/RRP3 (Product View) or /SAPAPO/SNP1 (SNP Planning) to analyze the resources and planning data.
  SAP Help Documentation: Refer to the official SAP documentation for detailed information on resource management in APO.
  Community Forums: Engage with SAP community forums or support channels for additional insights and shared experiences from other users.
  
  By following these steps, you should be able to identify the cause of the /SAPAPO/SNP402 error and implement the appropriate solution. If the problem persists, consider reaching out to SAP support for further assistance.