How To Fix /IWBEP/SBOD120 - Principal Key for Referential Constraint must not be initial

/IWBEP/SBOD120 - Overview

• Message type: E = Error

• Message class: /IWBEP/SBOD -

• Message number: 120

• Message text: Principal Key for Referential Constraint must not be initial

Self-Explanatory Message

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/IWBEP/SBOD120 - Details

• The SAP error message /IWBEP/SBOD120 Principal Key for Referential Constraint must not be initial typically occurs in the context of OData services when there is an issue with the data model, specifically related to referential integrity constraints in the underlying database or data model.
  
  Cause:
  This error usually arises when:
  
  Missing Key Values: The principal entity (the entity that is being referenced) does not have a valid key value. This means that the key field(s) that are supposed to uniquely identify a record in the principal entity are either not set or are empty (initial).
  Referential Integrity Violation: The data being processed is trying to establish a relationship with a principal entity that does not exist or is not properly defined in the database.
  Incorrect Data Model Configuration: There may be issues in the way the data model is defined, such as incorrect associations or navigation properties.
  
  
  Solution:
  To resolve this error, you can take the following