How To Fix ACM_UI052 - Unknown object type: "&1"

SAP Error Message - Details

• Message type: E = Error

• Message class: ACM_UI - Message-Class for all ACM-UIs

• Message number: 052

• Message text: Unknown object type: "&1"

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message ACM_UI052 - Unknown object type: "&1" ?

  The SAP error message ACM_UI052 "Unknown object type: '&1'" typically occurs in the context of the Application Component Management (ACM) or when dealing with certain object types in SAP systems. This error indicates that the system is unable to recognize or find the specified object type, which is represented by the placeholder "&1".
  Causes:
  
  Incorrect Object Type: The object type specified in the transaction or program may not exist or may have been misspelled.
  Configuration Issues: There may be configuration issues in the system that prevent the recognition of certain object types.
  Authorization Issues: The user may not have the necessary authorizations to access the specified object type.
  Missing Customization: If the object type is a custom object, it may not have been properly defined or activated in the system.
  Transport Issues: If the object type was recently transported from another system, it may not have been transported correctly.
  
  Solutions:
  
  Check Object Type: Verify that the object type you are trying to use is correct and exists in the system. Ensure there are no typos or incorrect references.
  Review Configuration: Check the configuration settings related to the object type in the relevant customizing transactions (e.g., SPRO).
  Authorization Check: Ensure that the user has the necessary authorizations to access the object type. You may need to consult with your security team.
  Custom Object Definition: If the object type is custom, ensure that it has been properly defined and activated in the system. You may need to check with the development team.
  Transport Validation: If the object type was recently transported, validate that the transport was successful and that all necessary objects were included.
  Consult Documentation: Refer to SAP documentation or notes related to the specific object type for additional guidance.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the ACM_UI052 error.
  Transaction Codes: Familiarize yourself with relevant transaction codes that may help in troubleshooting, such as SE80 (Object Navigator) or SE11 (Data Dictionary).
  Logs and Traces: Review system logs (SM21) and application logs (SLG1) for additional error messages or context that may help in diagnosing the issue.
  
  If the problem persists after trying the above solutions, consider reaching out to SAP support or your internal SAP support team for further assistance.