How To Fix ET045 - Internal error: Unknown object type &1

ET045 - Overview

• Message type: E = Error

• Message class: ET - Translation and maintenance language

• Message number: 045

• Message text: Internal error: 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.

What else can you do?

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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message ET045 - Internal error: Unknown object type &1 ?

  The SAP error message ET045, which states "Internal error: Unknown object type &1," typically indicates that the system has encountered an unexpected object type that it does not recognize or cannot process. This error can occur in various contexts, such as during data processing, report generation, or when executing certain transactions.
  Causes:
  
  Invalid Object Type: The object type being referenced may not exist in the system or may have been deleted or not properly defined.
  
  Configuration Issues: There may be configuration issues in the system that lead to the recognition of an invalid object type.
  Custom Development: If there are custom programs or enhancements, they may be referencing an object type that is not defined or is incorrectly implemented.
  Transport Issues: If objects were transported from one system to another, there may be inconsistencies or missing objects in the target system.
  Data Corruption: There could be corruption in the database or in the metadata that defines