How To Fix MPE_EXEC_CONF004 - Unit &1 cannot be converted to operation activity unit &2

SAP Error Message - Details

• Message type: E = Error

• Message class: MPE_EXEC_CONF - Messages for Shop Floor Order Confirmation

• Message number: 004

• Message text: Unit &1 cannot be converted to operation activity unit &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MPE_EXEC_CONF004 - Unit &1 cannot be converted to operation activity unit &2 ?

  The SAP error message MPE_EXEC_CONF004 indicates that there is an issue with unit conversion between two different units of measure in the context of an operation activity. Specifically, it states that a unit (Unit &1) cannot be converted to another unit (Unit &2) during the execution of a manufacturing or production process.
  Cause:
  This error typically arises due to one of the following reasons:
  
  
  Unit of Measure Configuration: The units of measure for the operation activity are not properly configured in the system. This could mean that the conversion factors between the two units are not defined.
  
  
  Inconsistent Data: There may be inconsistencies in the master data, such as the material master or the routing, where the units of measure are defined.
  
  
  Missing Conversion Factors: The conversion factors between the two units of measure may not be maintained in the system, leading to the inability to convert one unit to another.
  
  
  Incorrect Unit Assignment: The unit assigned to the operation activity may not be compatible with the expected unit for the process.
  
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Unit of Measure Configuration:
  
  Go to the transaction code CUNI (Maintain Units of Measure) and verify that the units of measure involved (Unit &1 and Unit &2) are correctly defined.
  Ensure that the conversion factors between these units are maintained.
  
  
  
  Review Master Data:
  
  Check the material master data (transaction code MM03) for the material involved in the operation. Ensure that the units of measure are correctly assigned.
  Review the routing (transaction code CA03) to ensure that the operation activity is using the correct unit of measure.
  
  
  
  Maintain Conversion Factors:
  
  If conversion factors are missing, you can maintain them in the unit of measure settings. This can usually be done in the same transaction (CUNI) or through the material master.
  
  
  
  Validate Operation Activity:
  
  Ensure that the operation activity is correctly set up in the production order or process order. Check if the unit of measure assigned to the operation is appropriate for the activity being performed.
  
  
  
  Test the Changes:
  
  After making the necessary adjustments, try to execute the operation again to see if the error persists.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  CUNI: Maintain Units of Measure
  MM03: Display Material Master
  CA03: Display Routing
  CO02: Change Production Order (to test the operation)
  
  
  
  Documentation: Refer to SAP Help documentation for detailed information on unit of measure configuration and conversion factors.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to this error message.
  
  
  By following these steps, you should be able to identify and resolve the cause of the MPE_EXEC_CONF004 error in your SAP system.