How To Fix /IWBEP/SBOD404 - Invalid target multiplicity '&1' specified

/IWBEP/SBOD404 - Overview

• Message type: E = Error

• Message class: /IWBEP/SBOD -

• Message number: 404

• Message text: Invalid target multiplicity '&1' specified

Self-Explanatory Message

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To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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/IWBEP/SBOD404 - Details

• The SAP error message /IWBEP/SBOD404 Invalid target multiplicity '&1' specified typically occurs in the context of SAP Gateway and OData services. This error indicates that there is an issue with the multiplicity defined for a relationship in your OData model. The multiplicity defines how many instances of one entity can be associated with instances of another entity.
  
  Cause:
  
  
  Incorrect Multiplicity Definition: The error usually arises when the multiplicity defined in the OData service does not match the expected values. For example, if you have defined a one-to-many relationship but the data being processed suggests a many-to-many relationship, this inconsistency can trigger the error.
  
  
  Model 
  Configuration Issues: There may be issues in the way the OData model is configured, such as incorrect annotations or relationships between entities.
  
  
  Data Issues: The data being processed may not conform to the expected structure, leading to a mismatch in the multiplicity.
  
  
  
  Solution:
  
  
  Check the OData Model: Review the OData model definition