How To Fix C0813 - Assign the unit of measure to one characteristic only

SAP Error Message - Details

• Message type: E = Error

• Message class: C0 - PP-PI: Messages for PI Sheet and Syntax Checker

• Message number: 813

• Message text: Assign the unit of measure to one characteristic only

What causes this issue?

You have set the indicator for the unit of measure for several process
instruction characteristics. However, the unit of measure can only be
displayed for one characteristic of a process instruction at a time.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Set the indicator for the unit of measure for one process instruction
characteristic only.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message C0813 - Assign the unit of measure to one characteristic only ?

  The SAP error message C0813, which states "Assign the unit of measure to one characteristic only," typically occurs in the context of SAP's classification system, particularly when dealing with characteristics and units of measure in the classification of materials or products.
  Cause:
  This error arises when a unit of measure (UoM) is assigned to multiple characteristics within a classification system. In SAP, each characteristic can only have one unit of measure assigned to it to avoid ambiguity and ensure data integrity. If a unit of measure is assigned to more than one characteristic, the system will trigger this error.
  Solution:
  To resolve the C0813 error, you should follow these steps:
  
  
  Identify the Characteristics: Determine which characteristics are currently assigned the same unit of measure. You can do this by reviewing the characteristics in the classification system.
  
  
  Review Assignments: Check the assignments of units of measure to characteristics. You can do this in the SAP GUI by navigating to the relevant classification view.
  
  
  Reassign Units of Measure:
  
  Decide which characteristic should retain the unit of measure.
  Remove the unit of measure from the other characteristics that are incorrectly assigned the same UoM.
  Ensure that each characteristic has a unique unit of measure assigned.
  
  
  
  Save Changes: After making the necessary adjustments, save your changes in the classification system.
  
  
  Test the Changes: After resolving the issue, test the changes by attempting to perform the action that previously triggered the error to ensure that it has been resolved.
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like CL02 (Change Class) or CL03 (Display Class) to manage characteristics and their assignments.
  Documentation: Refer to SAP Help documentation for more details on characteristics and units of measure in the classification system.
  User Roles: Ensure that you have the necessary authorizations to make changes to characteristics and units of measure in the SAP system.
  
  By following these steps, you should be able to resolve the C0813 error and ensure that your classification system is functioning correctly.