How To Fix ON161 - Object type &1 was not found

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 161

• Message text: Object type &1 was not found

What causes this issue?

An attempt was made to read the object type &V1&. This object type (no
longer) exists. Therefore it cannot be displayed as a root in the
inheritance tree.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

No action is required. This is just for your information.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message ON161 - Object type &1 was not found ?

  The SAP error message ON161, which states "Object type &1 was not found," typically occurs when the system is unable to locate a specific object type that is referenced in a transaction or program. This can happen for various reasons, and understanding the cause and potential solutions can help resolve the issue.
  Causes:
  
  Incorrect Object Type: The object type specified in the transaction or program may be incorrect or misspelled.
  Missing Configuration: The object type may not be configured in the system, or it may not exist in the relevant client.
  Authorization Issues: The user may not have the necessary authorizations to access the object type.
  Transport Issues: If the object type was recently transported from another system, it may not have been properly imported or activated.
  Data Consistency Issues: There may be inconsistencies in the database or application layer that prevent the object type from being recognized.
  
  Solutions:
  
  Verify Object Type: Check the object type specified in the transaction or program for any typos or errors. Ensure that it is the correct object type that you intend to use.
  Check Configuration: Ensure that the object type is properly configured in the system. This may involve checking the relevant customizing settings in the SAP system.
  Authorization Check: Verify that the user has the necessary authorizations to access the object type. This can be done by checking the user's roles and authorizations in the user management area.
  Transport Validation: If the object type was recently transported, check the transport logs to ensure that it was successfully imported and activated in the target system.
  Database Consistency: Run consistency checks or database repair tools if you suspect that there may be inconsistencies in the database.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance related to the object type in question.
  
  Related Information:
  
  Transaction Codes: Depending on the context of the error, you may want to check transaction codes related to the object type you are working with.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error message or provide additional troubleshooting steps.
  Community Forums: Consider checking SAP Community forums or other user groups for similar issues and solutions shared by other users.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or technical team for further investigation.