Message type: E = Error
Message class:  LTR2_CM_CHECK_TSD - LTR2 Checks on TSD of Content Module 
Message number: 019
Message text: Sign '&1' of package type '&2' is invalid; see long text
The sign value must be "Exclude Value" or "Include Value". Note that for
definitions of package types, only "Exclude Value" is supported.
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.
The SAP error message LTR2_CM_CHECK_TSD019 indicates that there is an issue with a specific sign (denoted as &1) of a package type (denoted as &2) in the context of the SAP Landscape Transformation (SLT) or related data replication processes. This error typically arises when the system encounters an invalid configuration or data inconsistency related to the package type.
Cause: Invalid Sign: The sign specified in the error message is not recognized or is not valid for the given package type. This could be due to a typo, incorrect configuration, or a mismatch in expected values.
Configuration Issues: There may be issues in the configuration settings for the data replication or transformation process that lead to this error. Data Inconsistency: The data being processed may not conform to the expected format or rules defined for the package type.
Solution: Check Configuration: Review the configuration settings for the package type in question. Ensure that the sign and other
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