How To Fix 28066 - Invalid combination of object identifier/class type: (&1)(&2)

SAP Error Message - Details

• Message type: E = Error

• Message class: 28 - Configuration

• Message number: 066

• Message text: Invalid combination of object identifier/class type: (&1)(&2)

What causes this issue?

The syntax check found an error in an entry for an object. The
combination of object identifier and class type is incorrect.

System Response

The cursor shows where the error occurs.

How to fix this error?

At the cursor, the syntax check expects an object. To refer to an
object, you enter the object identifier, class type, and object key:
(material)(300)(NR='M4711')
Check whether the object identifier you entered at the cursor, &V1&, is
compatible with class type &V2&.
Please see also other possible causes of error (messages).

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 28066 - Invalid combination of object identifier/class type: (&1)(&2) ?

  The SAP error message 28066 indicates that there is an invalid combination of object identifier and class type in the system. This error typically arises in scenarios involving object management, such as when working with classification, object links, or when trying to access or manipulate objects in the SAP system.
  Cause:
  The error can occur due to several reasons:
  
  Incorrect Object Identifier/Class Type: The object identifier (ID) you are trying to use does not match the expected class type. For example, if you are trying to access a material object with a class type that is not associated with materials.
  Configuration Issues: There may be configuration issues in the classification system or in the way object types are defined.
  Data Integrity Issues: There could be inconsistencies in the data, such as missing or incorrect entries in the classification tables.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to access certain object types.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Object Identifier and Class Type:
  
  Verify that the object identifier you are using is correct and corresponds to the expected class type. You can do this by checking the configuration in the classification system.
  
  
  
  Review Configuration:
  
  Go to the transaction code CL02 (Class Maintenance) and check the class types and their associated object types. Ensure that the object you are trying to access is correctly classified.
  
  
  
  Data Consistency Check:
  
  Use transaction codes like SE11 (Data Dictionary) to check the relevant tables for any inconsistencies. You may also want to run consistency checks if available.
  
  
  
  Authorization Check:
  
  Ensure that the user has the necessary authorizations to access the object type. You can check this in transaction SU53 after the error occurs to see if there are any authorization issues.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to the specific object types and class types you are working with. There may be specific guidelines or known issues documented by SAP.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance. Provide them with the details of the error message and the context in which it occurred.
  
  
  
  Related Information:
  
  Transaction Codes: CL02 (Class Maintenance), SE11 (Data Dictionary), SU53 (Authorization Check).
  SAP Notes: Check the SAP Support Portal for any relevant notes that may address this specific error message.
  Documentation: Review the SAP Help Portal for information on classification and object management.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution.