06621 - Unit of measure & cannot be used for simulation purposes

SAP Error Message - Details

• Message type: E = Error

• Message class: 06 -

• Message number: 621

• Message text: Unit of measure & cannot be used for simulation purposes

What causes this issue?

A problem has occurred during conversion of the
<GL:purchase_order_price_unit>purchase order price unit</> into the
<GL:unit_of_measure>unit of measure</> used in the simulation.

System Response

The unit of measure &V1& is not allowed.

How to fix this error?

Change the base unit of measure with which you started the simulation.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 06621 - Unit of measure & cannot be used for simulation purposes ?

  The SAP error message "06621 Unit of measure & cannot be used for simulation purposes" typically occurs when you are trying to use a unit of measure (UoM) in a context where it is not allowed for simulation purposes. This can happen in various transactions or processes, such as when performing simulations in production planning, material requirements planning, or other related modules.
  Cause:
  
  Incompatible Unit of Measure: The unit of measure you are trying to use is not defined for simulation purposes in the system. This could be due to configuration settings or the specific nature of the UoM.
  Master Data Issues: The material master data may not have the appropriate UoM settings for the simulation process you are attempting.
  Configuration Settings: The system configuration may restrict certain units of measure from being used in simulations.
  
  Solution:
  
  
  Check UoM Configuration:
  
  Go to the configuration settings in SAP (Transaction code: SPRO).
  Navigate to the relevant area for units of measure and check if the UoM in question is allowed for simulation purposes.
  If necessary, adjust the settings to include the UoM for simulation.
  
  
  
  Review Material Master Data:
  
  Use transaction code MM03 to display the material master data.
  Check the units of measure assigned to the material and ensure that the UoM you are trying to use is correctly defined and allowed for the intended simulation.
  
  
  
  Use Alternative UoM:
  
  If the UoM cannot be changed or configured for simulation, consider using an alternative UoM that is permitted for the simulation process.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help resources related to the specific module you are working with to understand the restrictions on UoMs for simulations.
  
  
  
  Contact SAP Support:
  
  If the issue persists and you cannot find a resolution, consider reaching out to SAP support for assistance, especially if this is a critical process for your business.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM03 (Display Material), SPRO (Customizing), and others that may be relevant to your specific SAP environment.
  SAP Notes: Check for any SAP Notes related to this error message, as they may provide additional insights or patches that could resolve the issue.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.