Message type: E = Error
Message class:  EU - Development Environment 
Message number: 423
Message text: Domain & does not exist
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The SAP error message "EU423 Domain & does not exist" typically indicates that the system is unable to find a specified domain in the database. This error can occur in various contexts, such as when working with data elements, domains, or field definitions in the ABAP Dictionary.
Cause: Non-existent Domain: The domain specified in the error message does not exist in the SAP system. This could be due to a typo in the domain name or because the domain has not been created. Transport Issues: If the domain was recently transported from another system, it may not have been included in the transport request, or the transport may have failed. Authorization Issues: The user may not have the necessary authorizations to access the domain. Development Environment: The domain might exist in the development environment but not in the production or quality assurance environments.
Solution: Check Domain Existence: Go to transaction code SE11 (Data Dictionary). Enter the domain name in
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