Message type: E = Error
Message class:  SLEI_DEF_MSG - Message class for LEI design time linkages 
Message number: 034
Message text: Design linkage with linkage ID '&1' does not exist
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The SAP error message SLEI_DEF_MSG034 indicates that there is an issue with a design linkage in the SAP system. Specifically, it states that the design linkage with the specified linkage ID does not exist. This error typically occurs in the context of SAP's Logistics Execution (LE) or related modules where design linkages are used for various processes.
Cause: Missing Linkage ID: The linkage ID specified in the error message does not exist in the system. This could be due to a configuration issue or because the linkage was never created. Data Inconsistency: There may be inconsistencies in the data, such as missing entries in the relevant tables that manage design linkages. Transport Issues: If the linkage was created in a different environment (e.g., development) and not transported correctly to the current environment (e.g., production), it may not exist. Authorization Issues: Sometimes, the user may not have the necessary authorizations to view or access the linkage,
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