How To Fix AD299 - Foreign key &-& (relationship cat. CLAS/SPEC --> cardinality 'C')

AD299 - Overview

• Message type: E = Error

• Message class: AD - Data Dictionary application messages

• Message number: 299

• Message text: Foreign key &-& (relationship cat. CLAS/SPEC --> cardinality 'C')

Relationship categories CLAS and SPEZ can only have the cardinality 'C'.

Error message extract from SAP system. Copyright SAP SE.

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• What is the cause and solution for SAP error message AD299 - Foreign key &-& (relationship cat. CLAS/SPEC --> cardinality 'C') ?

  The SAP error message AD299 indicates a problem related to foreign key relationships in the context of data modeling, particularly when dealing with class and specification relationships. The error message typically arises when there is a violation of the defined cardinality constraints in the data model.
  
  Cause:
  The error message AD299 is triggered when:
  
  There is an attempt to create or modify a relationship between a class and a specification that does not comply with the defined cardinality constraints.
  The cardinality 'C' (which stands for "many") indicates that the relationship allows multiple instances of the specification to be associated with a single class. If the data being processed does not meet this requirement, the error will occur.
  
  
  Solution:
  To resolve the AD299 error, you can take the following steps:
  
  
  Check the Relationship Definition:
  
  Review the relationship definition between the class and specification in the data model. Ensure that the cardinality is correctly defined as 'C' for the intended