Use
If you no longer need a customer-specific wage type, you can delete this wage type from the wage type catalog using the wage type copier. It is then no longer available in your system.

Never delete SAP model wage types.
Never delete customer-specific wage types in a live system; only ever do this in a test system.
We recommend that you do not delete wage types, as this can cause problems during the Payroll run. Instead, you should define in Customizing that the wage type in question should no longer be permitted for entry in any infotype. For example, you have the possibility of doing this for each infotype in Customizing for Personnel Administration in the section
Payroll Data. As an alternative we recommend that you do not delete the wage type, but rather that it should be
delimited with respect to time.
Prerequisites
You have copied SAP model wage types to the customer name range.
Procedure
The Delete Wage Types screen appears.

Only specify wage type names from your customer name range.
A
Result
The system makes the following changes in the SAP System tables:
The deleted wage type is neither available for wage type copying or for other activities in the SAP system.