How To Fix SLS_LO_GAF_EWB138 - Data type LANG (language key) of field &1 forces conversion exit ISOLA

SLS_LO_GAF_EWB138 - Overview

• Message type: E = Error

• Message class: SLS_LO_GAF_EWB - GAF Enh WB Msg for LO based FPM config sales UI

• Message number: 138

• Message text: Data type LANG (language key) of field &1 forces conversion exit ISOLA

Self-Explanatory Message

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SLS_LO_GAF_EWB138 - Details

• The SAP error message SLS_LO_GAF_EWB138 indicates that there is an issue with the data type of a field that is expected to hold a language key (LANG). The error specifically mentions that the field is forcing a conversion exit called ISOLA. This typically occurs when there is a mismatch in the expected format of the language key, which is usually a two-character code (like 'EN' for English, 'DE' for German, etc.).
  
  Cause:
  
  Data Type Mismatch: The field in question is expected to be of a specific data type (usually CHAR with a length of 2 for language keys), but the data being passed does not conform to this expectation.
  Incorrect Data Input: The value being assigned to the language key field may be longer than two characters or may contain invalid characters.
  Conversion Exit Issue: The conversion exit ISOLA is used to convert the language key into a format that SAP can understand. If