How To Fix ON221 - Details exist only for the relationship types 'contains' or 'references'

SAP Error Message - Details

• Message type: E = Error

• Message class: ON - Tools in area Object Modeler / Object Editor

• Message number: 221

• Message text: Details exist only for the relationship types 'contains' or 'references'

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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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Smart SAP Assistant

• What is the cause and solution for SAP error message ON221 - Details exist only for the relationship types 'contains' or 'references' ?

  The SAP error message ON221 indicates that there is an issue with the relationship types being used in a particular context, typically when dealing with object relationships in SAP. This error specifically states that details exist only for the relationship types 'contains' or 'references'. 
  
  Cause:
  The error usually arises when you are trying to create or manage relationships between objects in SAP, and the system expects a specific type of relationship (either 'contains' or 'references') but encounters a different type or an invalid configuration. This can happen in various scenarios, such as:
  
  Attempting to link objects using an unsupported relationship type.
  Misconfiguration of the object types or their relationships in the system.
  Trying to access or manipulate data that does not conform to the expected relationship types.
  
  
  Solution:
  To resolve the ON221 error, you can take the following steps:
  
  
  Check Relationship Types: Ensure that you are using the correct relationship type ('contains' or 'references') when creating or