How To Fix /SAPAPO/ATP206 - Conversion factor from &1 to &2 could not be determined

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/ATP -

• Message number: 206

• Message text: Conversion factor from &1 to &2 could not be determined

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/ATP206 - Conversion factor from &1 to &2 could not be determined ?

  The SAP error message /SAPAPO/ATP206 indicates that the system is unable to determine the conversion factor between two units of measure (UoM) in the Advanced Planning and Optimization (APO) module, specifically in the context of Available-to-Promise (ATP) checks. This can occur in various scenarios, such as during order processing, stock checks, or when trying to allocate resources.
  Cause:
  
  Missing Conversion Factor: The most common cause is that there is no defined conversion factor between the two units of measure involved in the transaction.
  Incorrect Unit of Measure: The units of measure used in the transaction may not be correctly defined or may not exist in the system.
  Configuration Issues: There may be issues in the configuration of the material master or the unit of measure settings in the system.
  Data Inconsistencies: There could be inconsistencies in the master data, such as the material master or the info records.
  
  Solution:
  
  
  Check Unit of Measure Settings:
  
  Go to the material master (transaction code MM03) and check the units of measure defined for the material in question.
  Ensure that the required units of measure are maintained and that a conversion factor exists between them.
  
  
  
  Define Conversion Factors:
  
  If the conversion factor is missing, you can define it in the material master under the "Units of Measure" view.
  You can also use transaction code CUNI to maintain unit of measure conversions globally.
  
  
  
  Review Material Master Data:
  
  Ensure that the material master data is complete and accurate. Check for any missing or incorrect entries that could affect the conversion.
  
  
  
  Check Configuration:
  
  Review the configuration settings in the SAP system related to units of measure and conversion factors. This may involve checking the settings in the customizing transaction (SPRO).
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific guidance on managing units of measure and conversion factors.
  
  
  
  Testing:
  
  After making the necessary changes, perform a test transaction to ensure that the error no longer occurs.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  MM03: Display Material Master
  CUNI: Maintain Units of Measure
  SPRO: Customizing Implementation Guide
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to this error message.
  User Exits and BAdIs: If custom logic is involved, review any user exits or BAdIs that may affect unit of measure conversions.
  
  By following these steps, you should be able to resolve the error message /SAPAPO/ATP206 and ensure that the conversion factors between units of measure are correctly defined in your SAP system.