How To Fix CU803 - Class type & cannot be used for general maintenance task lists

CU803 - Overview

• Message type: E = Error

• Message class: CU - Variants / configuration messages

• Message number: 803

• Message text: Class type & cannot be used for general maintenance task lists

What causes this issue?

This class type does not support variant configuration for
<DS:GLOS.general_maintenance_task_list>general maintenance task
lists</>.
In Customizing for the classification system, you define whether each
class type can be used in variant configuration. The <ZH>Variant class
type</> indicator was not set for this class type.

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?

In the standard system, you can use class type 300 for configuring
general maintenance task lists.
To display the class types for an object type, choose <LS>Settings ->
Class types</> from the classification menu.
The dialog box for selecting a class type also contains these details.

Error message extract from SAP system. Copyright SAP SE.

CU803 - Details

• The SAP error message CU803 indicates that a specific class type cannot be used for general maintenance task lists. This error typically arises when you attempt to create or modify a maintenance task list using a class type that is not permitted for that purpose.
  
  Cause:
  The primary cause of the CU803 error is that the class type you are trying to use is not configured to be utilized for general maintenance task lists. In SAP, different class types are designated for specific purposes, and not all class types are suitable for general maintenance tasks.
  
  Solution:
  To resolve the CU803 error, you can take the following steps:
  
  
  Check Class Type Configuration:
  
  Go to the transaction code OILM (or SPRO for configuration) to check the configuration of class types.
  Ensure that the class type you are trying to use is allowed for general maintenance task lists. You may need to consult with your SAP administrator or functional consultant