How To Fix DT188 - Field &: Only fields with data type LANG are flaggable as language fields

SAP Error Message - Details

• Message type: E = Error

• Message class: DT - Table activation (incl. indexes)

• Message number: 188

• Message text: Field &: Only fields with data type LANG are flaggable as language fields

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DT188 - Field &: Only fields with data type LANG are flaggable as language fields ?

  The SAP error message DT188 indicates that you are trying to set a field as a language field (flaggable as a language field) in a data dictionary object (like a table or structure), but the field in question does not have the data type LANG. In SAP, only fields defined with the data type LANG can be marked as language fields.
  Cause:
  
  Incorrect Data Type: The field you are trying to flag as a language field is not of the data type LANG. This data type is specifically designed to store language keys.
  Field Definition: The field may be defined with a different data type (e.g., CHAR, NUMC, etc.), which is not compatible with being a language field.
  
  Solution:
  
  Change Field Data Type: If the field is intended to store language-specific data, change its data type to LANG. This can be done in the Data Dictionary (SE11) by editing the field definition.
  Remove Language Flag: If the field does not need to be a language field, simply remove the language flag from the field properties.
  Check Field Usage: Ensure that the field is used correctly in the context of your application. If it is not meant to store language-specific data, it should not be flagged as such.
  
  Related Information:
  
  Data Type LANG: This is a special data type in SAP that is used to store language keys. It is typically used in fields that are meant to hold language-dependent data, such as descriptions or texts.
  Data Dictionary (SE11): This is the transaction code in SAP where you can view and modify the definitions of database objects, including tables, views, and data elements.
  Language-Dependent Fields: In SAP, language-dependent fields are used to store text in multiple languages. When a field is flagged as a language field, it allows the system to manage translations and display the correct text based on the user's language settings.
  
  Steps to Resolve:
  
  Go to transaction SE11.
  Enter the name of the table or structure where the error occurred.
  Find the field that is causing the error.
  Check the data type of the field.
  If necessary, change the data type to LANG or remove the language flag.
  Activate the changes and check if the error persists.
  
  By following these steps, you should be able to resolve the DT188 error in SAP.