How To Fix /SAPAPO/RRP066 - Conversion to unit of measure &1 not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/RRP -

• Message number: 066

• Message text: Conversion to unit of measure &1 not possible

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/RRP066 - Conversion to unit of measure &1 not possible ?

  The SAP error message /SAPAPO/RRP066 Conversion to unit of measure &1 not possible typically occurs in the context of Advanced Planning and Optimization (APO) when there is an issue with converting quantities between different units of measure (UoM). This can happen during planning activities, such as when trying to create or adjust a production order, or when working with stock levels.
  Causes:
  
  
  Missing Conversion Factors: The system may not have the necessary conversion factors defined for the units of measure involved. For example, if you are trying to convert from kilograms to grams, the conversion factor must be defined in the system.
  
  
  Incorrect Unit of Measure Configuration: The units of measure may not be correctly configured in the material master or in the APO settings. This can include issues with the base unit of measure or alternative units of measure.
  
  
  Inconsistent Data: There may be inconsistencies in the data related to the material, such as incorrect settings in the material master or in the APO planning books.
  
  
  Unit of Measure Not Defined: The unit of measure you are trying to convert to may not be defined in the system.
  
  
  Solutions:
  
  
  Check Material Master: Go to the material master record and verify that the units of measure are correctly defined. Ensure that the conversion factors are set up properly.
  
  
  Define Conversion Factors: If conversion factors are missing, you can define them in the material master under the "Units of Measure" tab. Make sure to include all necessary conversions.
  
  
  Review APO Settings: Check the APO settings related to the planning area and ensure that the units of measure are correctly configured.
  
  
  Consistency Check: Run consistency checks in APO to identify any discrepancies in the data that may be causing the issue.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on unit of measure configuration and troubleshooting.
  
  
  Contact SAP Support: If the issue persists after checking the above points, consider reaching out to SAP support for further assistance.
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like MM03 (Display Material), MM02 (Change Material), or CIF (Core Interface) to check and modify material master data.
  Unit of Measure Tables: Familiarize yourself with relevant tables such as MARM (Units of Measure for Material) and T006 (Units of Measure) for deeper insights into unit configurations.
  APO Planning Books: Review the planning books and data views in APO to ensure that the units of measure are correctly set up for the planning process.
  
  By addressing the above causes and implementing the suggested solutions, you should be able to resolve the error message /SAPAPO/RRP066.