How To Fix PO549 - Parameter error (&1) calling a cache C call

SAP Error Message - Details

• Message type: E = Error

• Message class: PO - Spooler message

• Message number: 549

• Message text: Parameter error (&1) calling a cache C call

What causes this issue?

An error occurred calling a function of the C kernel spool cache
control.
There are two types of errors:
An error in the call syntax is displayed directly as a parameter in the
error message text.
An error within the operation is displayed as an error number.

System Response

The operation could not be executed.

How to fix this error?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message PO549 - Parameter error (&1) calling a cache C call ?

  The SAP error message PO549, which states "Parameter error (&1) calling a cache C call," typically indicates that there is an issue with the parameters being passed to a cache-related function in the SAP system. This error can occur in various contexts, often related to performance optimization features that utilize caching mechanisms.
  Causes:
  
  Invalid Parameters: The parameters being passed to the cache function may not be valid or may not meet the expected format or type.
  Configuration Issues: There may be misconfigurations in the caching settings or related components in the SAP system.
  Data Inconsistencies: The data being processed may have inconsistencies or corruption that lead to the cache function failing.
  System Bugs: There may be bugs in the SAP system or specific versions that lead to this error when certain conditions are met.
  
  Solutions:
  
  Check Parameters: Review the parameters being passed to the cache function. Ensure they are valid and conform to the expected types and formats.
  Review Configuration: Check the caching configuration in the SAP system. Ensure that all settings are correctly configured and that there are no discrepancies.
  Data Validation: Validate the data being processed to ensure there are no inconsistencies or corruption. This may involve checking database entries or application logic.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal. There may be specific patches or updates that address this error.
  System Logs: Check the system logs (transaction SM21) for additional error messages or warnings that may provide more context about the issue.
  Contact SAP Support: If the issue persists, consider reaching out to SAP Support for assistance. Provide them with detailed information about the error, including the context in which it occurs.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM21 (System Log), ST22 (Dump Analysis), and SLG1 (Application Log) to gather more information about the error.
  Performance Tuning: If caching is being used for performance reasons, consider reviewing the overall performance tuning of the SAP system to ensure optimal configuration.
  Documentation: Refer to SAP documentation for the specific version you are using, as there may be version-specific considerations or known issues related to caching.
  
  By following these steps, you should be able to diagnose and potentially resolve the PO549 error in your SAP system.