Benefit Plan Roll up ( W2 Forms )

Hello Team ,

Please let me know how do we identifiy the Wage types included in W2 Boxes , For example Box1 ( Wage tips and other compensation ) the list of wage types and , where system picks this wage types..

In my case I can see the Box 5 ( Medicare wages and tips ) amount is 75000 , but I have not maintained such amount in Masterdata.

Please help me .......Very Urgent .......

Thanks

Sony