How To Fix ACM054 - Association "&1" has a maximum cardinality > 1. This is not allowed

ACM054 - Overview

• Message type: E = Error

• Message class: ACM - Message-Class for all ACM functions/exceptions

• Message number: 054

• Message text: Association "&1" has a maximum cardinality > 1. This is not allowed

Self-Explanatory Message

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ACM054 - Details

• The SAP error message ACM054 indicates that there is an issue with the cardinality of an association in your data model. Specifically, it means that an association (which is a relationship between two entities) has been defined with a maximum cardinality greater than 1, which is not allowed in the context where it is being used.
  
  Cause:
  
  Incorrect Association Definition: The association in question has been defined with a maximum cardinality greater than 1 (e.g., 0..n or 1..n), but the context in which it is being used requires a maximum cardinality of 1 (e.g., 0..1 or 1..1).
  Modeling Error: There may be a misunderstanding of the relationships between the entities in your data model, leading to an incorrect definition of the association.
  Incompatibility with Business Logic: The business logic or requirements may dictate that a one-to-one relationship is necessary, but the model has been defined to allow for multiple associations.
  
  
  Solution:
  
  Review the Association Definition: Check