Here we would like to draw your attention to OVAP transaction code in SAP. As we know it is being used in the SAP SD-SLS (Sales in SD) component which is coming under SD module (Sales & Distribution).OVAP is a transaction code used for C SD Tab. VAP Item Categories in SAP.
It comes under the package VA0C.
Transaction OVAP technical data table
|Purpose||C SD Tab. VAP Item Categories|