Create Process Order in \SAPAPO\RRP3 - START DATE

Hi Experts,

I need your help to understand this situation, which is a problem for me.

When I create a Process Order in APO with the RRP3 transaction, the system requests Start date, Start Time, Available Date and Available Time. What interests me is that APO considers Start Date and Start Time as a valid condition and this Date and Time always modifies it.

Is there any configuration so that APO respects Start Date and Star Time?