Message type: E = Error
Message class:  SDDIC_DDLA_ANNOCHECK - Messages for annotation usage check 
Message number: 019
Message text: Annotation '&1' is not permitted for use in metadata extensions
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The SAP error message SDDIC_DDLA_ANNOCHECK019 indicates that there is an issue with the use of a specific annotation in metadata extensions within the SAP system. This error typically arises when an annotation that is not allowed or supported is being used in the context of metadata extensions.
Cause: The error occurs due to the following reasons: Unsupported Annotation: The annotation specified (represented by &1 in the error message) is not permitted for use in the context of metadata extensions. This could be due to the annotation being deprecated, not applicable, or simply not supported in the version of SAP you are using. Incorrect Configuration: There may be a misconfiguration in the metadata extension where the annotation is being applied incorrectly. Version Compatibility: The annotation might be valid in a different version of SAP but not in the one you are currently using.
Solution: To resolve this error, you can take the following steps: Check Documentation: Review the official
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