How To Fix DO661 - Object type & is unknown -> object will be removed from processing

SAP Error Message - Details

• Message type: E = Error

• Message class: DO - Dictionary: Mass activation of domains and data elements

• Message number: 661

• Message text: Object type & is unknown -> object will be removed from processing

Self-Explanatory Message

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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 DO661 - Object type & is unknown -> object will be removed from processing ?

  The SAP error message DO661 indicates that the system has encountered an unknown object type during processing, which leads to the object being removed from the processing queue. This error typically arises in the context of document processing, such as when dealing with document management or workflow scenarios.
  Cause:
  
  
  Unknown Object Type: The primary cause of this error is that the system has encountered an object type that is not recognized or is not defined in the system. This could happen due to:
  
  A missing or incorrectly configured object type in the system.
  An inconsistency in the data or configuration that leads to the system not being able to identify the object type.
  Custom developments or enhancements that may not have been properly implemented or registered.
  
  
  
  Data Integrity Issues: If the data being processed is corrupted or does not conform to expected formats, it may lead to the system being unable to recognize the object type.
  
  
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to access certain object types, leading to the system treating them as unknown.
  
  
  Solution:
  
  
  Check Object Type Configuration: Verify that the object type in question is correctly defined in the system. This may involve checking the configuration settings in transaction codes like OAC0 (for object types) or OAC3 (for document types).
  
  
  Review Custom Developments: If there are any custom developments or enhancements related to document processing, review them to ensure that they are correctly implemented and that all necessary object types are registered.
  
  
  Data Validation: Check the data being processed for integrity and correctness. Ensure that the object types being referenced exist and are valid.
  
  
  Authorization Check: Ensure that the user has the necessary authorizations to access the object types involved in the processing. This can be checked in transaction SU53 or by reviewing the user's roles and authorizations.
  
  
  Consult SAP Notes: Look for any relevant SAP Notes that may address this specific error. SAP frequently releases notes that provide fixes or workarounds for known issues.
  
  
  Debugging: If the issue persists, consider debugging the process to identify where the unknown object type is being referenced. This may require technical expertise.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as OAC0, OAC3, and others related to document management.
  SAP Community: Engage with the SAP Community or forums to see if others have encountered similar issues and what solutions they have found.
  Documentation: Review SAP documentation related to document management and object types for further insights.
  
  If the problem continues after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.