Message type: E = Error
Message class:  KK -  
Message number: 806
Message text: Item &: costing variant requires a cost element
The control parameters for costing are linked to a costing variant in
the system.  One of the things this costing variant determines is that
all the costing items must be assigned to a cost element.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Enter a cost element for item &v1&.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message KK806 ("Item &: costing variant requires a cost element") typically occurs in the context of controlling (CO) when you are trying to perform a transaction related to cost accounting, such as creating or processing a cost estimate or a cost object. This error indicates that the system requires a cost element to be specified for the costing variant you are using.
Cause:
Missing Cost Element: The costing variant you are using does not have a cost element assigned to it. Cost elements are necessary for the system to understand how costs should be allocated and calculated.
Configuration Issues: The configuration of the costing variant may not be set up correctly in the system, leading to the requirement for a cost element not being met.
Incorrect Costing Variant: The costing variant being used may not be appropriate for the type of cost estimate or transaction you are trying to perform.
Solution:
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