Message type: E = Error
Message class:  SLS_TEMPLATE - Messages for sales template 
Message number: 012
Message text: Item &1: Material &2 is not defined for language &3
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The SAP error message SLS_TEMPLATE012 indicates that there is an issue with the material description for a specific language in the system. The message typically reads: "Item &1: Material &2 is not defined for language &3." Here’s a breakdown of the components of the error message: Item &1: This refers to the specific item number in the transaction or document you are working with. Material &2: This is the material number that is causing the issue. Language &3: This indicates the language code for which the material description is not defined. Cause The error occurs when: The material (identified by &2) does not have a description or text defined in the specified language (identified by &3). The system is trying to display or process information related to the material in a language that lacks the necessary data. Solution To resolve this error, you can take the following steps: Check Material Master Data: Go to the Material Master (transaction code MM03). Enter the
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