How To Fix C1040 - Maintain allowed values

C1040 - Overview

• Message type: E = Error

• Message class: C1 - Characteristics maintenance messages

• Message number: 040

• Message text: Maintain allowed values

What causes this issue?

You have defined that characteristic values are to be displayed in
characteristic value assignment functions, but you have not yet
maintained any allowed values.

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?

Enter at least one value or delete the indicator for displaying values
in value assignment functions on the interface control screen.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message C1040 - Maintain allowed values ?

  The SAP error message C1040, "Maintain allowed values," typically occurs when you are trying to enter a value in a field that does not match the allowed values defined for that field in the system. This can happen in various contexts, such as when entering data in a transaction, maintaining master data, or configuring settings.
  
  Cause:
  
  Invalid Input: The value you are trying to enter is not part of the predefined set of allowed values for that field.
  
  Configuration Issues: The allowed values for a field may not have been properly configured in the system.
  Data Consistency: The system may have constraints that require certain values to be maintained for data consistency.
  
  
  Solution:
  
  Check Allowed Values: Review the allowed values for the field in question. You can usually find this information in the configuration settings or documentation related to the specific module you are working with.
  Maintain Allowed Values: If you have the necessary authorization, you can