How To Fix SDDL_PARSER_MSG315 - The associations with cardinality TO MANY cannot be used

SDDL_PARSER_MSG315 - Overview

• Message type: E = Error

• Message class: SDDL_PARSER_MSG - Message Class for DDL Parser

• Message number: 315

• Message text: The associations with cardinality TO MANY cannot be used

Self-Explanatory Message

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SDDL_PARSER_MSG315 - Details

• The SAP error message SDDL_PARSER_MSG315 indicates that there is an issue with the cardinality of associations in your data model, specifically that an association is defined with a cardinality of "to many" (1:n or n:m) but is being used in a context where it cannot be.
  
  Cause:
  This error typically arises in the context of SAP's data modeling tools, such as when working with Core Data Services (CDS) views or when defining associations in ABAP Dictionary. The cardinality "to many" means that one entity can be associated with multiple instances of another entity. However, certain operations or contexts (like joins or specific queries) may not support this type of association directly.
  Common Scenarios Leading to This Error:
  
  Incorrect Association Usage: You might be trying to use a "to many" association in a context that expects a single instance (e.g., in a join condition).
  Modeling Errors: There may be a misconfiguration in your data model where