How To Fix MG142 - The value & is not allowed for the field &

SAP Error Message - Details

• Message type: E = Error

• Message class: MG - Batch input: material master

• Message number: 142

• Message text: The value & is not allowed for the field &

What causes this issue?

When you transfer data by <DS:GLOS.direct_input>direct input</> or when
you distribute data by <DS:GLOS.Application_Link_Enabling>application
link enabling</> (ALE), the system performs the same checks as in
online mode. However, the value &V1& is not allowed for the field &V2&.

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?

Check what values are allowed for the field in online mode.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MG142 - The value & is not allowed for the field & ?

  The SAP error message MG142, which states "The value & is not allowed for the field &," typically occurs in the context of material management or inventory management processes. This error indicates that a value entered in a specific field does not meet the validation criteria set for that field in the SAP system.
  Causes:
  
  Invalid Input Value: The value entered may not be valid for the specific field due to business rules or configuration settings.
  Field Restrictions: The field may have predefined acceptable values (e.g., specific units of measure, material types, etc.), and the entered value does not match any of these.
  Data Type Mismatch: The value may not conform to the expected data type (e.g., entering a string where a numeric value is expected).
  Configuration Issues: There may be issues with the configuration of the material master or other related settings that restrict the values that can be entered.
  
  Solutions:
  
  Check Input Value: Verify the value you are trying to enter. Ensure it is valid and conforms to the expected format and type.
  Review Field Settings: Check the field settings in the relevant configuration (e.g., material master data, transaction settings) to understand what values are allowed.
  Consult Documentation: Refer to SAP documentation or help files for the specific transaction or module you are working with to understand the constraints on the field.
  Use Valid Values: If the field has a dropdown or list of valid values, ensure you are selecting from that list.
  Configuration Review: If you have access, review the configuration settings in the SAP system to ensure that they are set up correctly and that there are no restrictions that are causing the error.
  Contact Support: If you are unable to resolve the issue, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  Related Information:
  
  Transaction Codes: The error may occur in various transaction codes related to material management, such as MM01 (Create Material), MM02 (Change Material), or during inventory transactions.
  Field Documentation: Each field in SAP typically has associated documentation that can provide insights into valid values and constraints.
  User Exits and BAdIs: Custom logic implemented through user exits or Business Add-Ins (BAdIs) may also affect the allowed values for certain fields.
  
  By following these steps, you should be able to identify the cause of the MG142 error and take appropriate action to resolve it.