SAP Message 3G303 - Supplemental (sequence no.&1) has already been evaluated in run &2

Diagnosis
The employee was skipped because at least one supplemental result hasalready been evaluated live for posting with the run PP &V2&. Thesupplemental result (payroll result with payroll type 'S') that hasalready been evaluated live has the sequence number &v1&.
This payroll result has either already been evaluated with thecorresponding result of the regular period, or it has been evaluatedindividually.
If at least one supplemental result or the regular result has alreadybeen evaluated individually, all current payroll results of the employeemust be evaluated by posting individually for this payroll period. Forthis reason, you should always evaluate all supplemental resultstogether with the result from the regular payroll period.

Procedure
If you have not posted the evaluation that has already been performedproductively, and the employee should therefore be evaluated again,delete the posting run PP &V2& that has already been performed.
If you want to repeat the evaluation as a simulation, do not create alive posting run. You should create a simulation run.