How To Fix DT199 - Exactly one field & of type LANG: Selection as text language possible

DT199 - Overview

• Message type: E = Error

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

• Message number: 199

• Message text: Exactly one field & of type LANG: Selection as text language possible

INCLUDE DT195 OBJECT DOKU ID NA

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DT199 - Exactly one field & of type LANG: Selection as text language possible ?

  The SAP error message DT199, which states "Exactly one field & of type LANG: Selection as text language possible," typically occurs when a selection screen or report is expecting a single language field to be specified, but either none or multiple language fields have been provided.
  
  Cause:
  
  Multiple Language Fields: The selection screen may have multiple fields defined for language input, but the system expects only one.
  No Language Field Provided: The user may not have provided any input for the language field when it is required.
  Incorrect Field Definition: The field defined in the selection screen may not be correctly set up as a language type field.
  
  
  Solution:
  
  Check Selection Screen: Review the selection screen definition in the ABAP program. Ensure that only one field of type LANG is defined for language selection.
  Provide a Language: If the program requires a language input, ensure that you provide a valid language code (e.g., 'EN' for English, 'DE'