How To Fix /SAPAPO/ATP488 - Invalid quantity conversion of &1 to &2 during rounding with material &3

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/ATP -

• Message number: 488

• Message text: Invalid quantity conversion of &1 to &2 during rounding with material &3

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/ATP488 - Invalid quantity conversion of &1 to &2 during rounding with material &3 ?

  The SAP error message /SAPAPO/ATP488 indicates an issue with quantity conversion during the rounding process in the Advanced Planning and Optimization (APO) module, specifically in the Available-to-Promise (ATP) check. This error typically arises when there is a mismatch in the units of measure or when the system is unable to convert a quantity from one unit to another due to rounding rules.
  Cause:
  
  Unit of Measure (UoM) Issues: The material in question may have different units of measure defined in the system, and the conversion between these units is not valid or not properly defined.
  Rounding Rules: The rounding rules set up in the system may not allow for the conversion of the specified quantity from one unit to another.
  Configuration Errors: There may be configuration issues in the material master or in the APO settings that affect how quantities are handled and converted.
  Data Integrity Issues: There could be inconsistencies in the data related to the material, such as incorrect or missing unit of measure settings.
  
  Solution:
  
  Check Material Master Data: Verify the unit of measure settings in the material master for the affected material. Ensure that the base unit of measure and alternative units of measure are correctly defined.
  Review Rounding Rules: Check the rounding rules configured in the system. Ensure that they are appropriate for the quantities being processed.
  Adjust Configuration: If necessary, adjust the configuration settings in the APO system related to ATP checks and quantity conversions.
  Test with Different Quantities: Try processing different quantities to see if the error persists. This can help identify if the issue is specific to certain quantities or units.
  Consult Documentation: Refer to SAP documentation or notes related to ATP and quantity conversion for any specific guidance or known issues.
  Contact SAP Support: If the issue cannot be resolved through the above steps, consider reaching out to SAP support for further assistance.
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like MM03 (Display Material) to check material master data or CIF (Core Interface) for integration issues.
  SAP Notes: Look for relevant SAP Notes that might address this specific error or provide patches or updates.
  User Forums: Check SAP community forums or other user groups for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.