How To Fix LSOPV749 - Enter a valid reference unit combination

SAP Error Message - Details

• Message type: E = Error

• Message class: LSOPV - Training Management (Copy of Message Class PV)

• Message number: 749

• Message text: Enter a valid reference unit combination

How to fix this error?

The following combinations of reference units are allowed:
per course
per time unit
per participant
per participant / per time unit

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 LSOPV749 - Enter a valid reference unit combination ?

  The SAP error message LSOPV749, which states "Enter a valid reference unit combination," typically occurs in the context of logistics and inventory management, particularly when dealing with unit of measure (UoM) conversions or when entering data related to stock movements, deliveries, or inventory management.
  Cause:
  
  Invalid Unit of Measure: The error often arises when the system cannot find a valid combination of reference units (e.g., base unit of measure and alternative units) for the material being processed.
  Configuration Issues: There may be issues in the configuration of the material master data, particularly in the units of measure section.
  Missing Data: The required reference unit combinations may not be defined in the system for the specific material.
  Data Entry Errors: Users may have entered an incorrect or unsupported unit of measure during transactions.
  
  Solution:
  
  
  Check Material Master Data:
  
  Go to the material master (transaction code MM03) and check the units of measure defined for the material in question.
  Ensure that the reference unit combinations are correctly set up in the "Units of Measure" view.
  
  
  
  Define Units of Measure:
  
  If the required unit of measure is missing, you may need to define it in the material master. This can be done using transaction code MM02 to edit the material master data.
  Ensure that the base unit of measure and any alternative units are correctly defined.
  
  
  
  Review Configuration:
  
  Check the configuration settings in the SAP system related to units of measure. This can be done in the SPRO transaction under the Logistics section.
  Ensure that the UoM settings are correctly configured for the relevant materials and processes.
  
  
  
  Data Entry Verification:
  
  Verify that the data being entered during transactions is correct and matches the defined units of measure in the material master.
  If using a custom program or transaction, ensure that it is correctly handling unit conversions.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help resources for additional guidance on handling unit of measure issues.
  
  
  
  Related Information:
  
  Transaction Codes: MM03 (Display Material), MM02 (Change Material), SPRO (Customizing).
  Unit of Measure Types: Understand the different types of units of measure (base, alternative, etc.) and how they relate to each other.
  SAP Notes: Check for any relevant SAP Notes that may address specific issues or bugs related to this error message.
  User Roles and Authorizations: Ensure that the user has the necessary permissions to make changes to the material master data.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in logistics and inventory management.