Actual PGI DATE in delivery document

Dear Experts

I  have scenario. Client want to create sales Oder for entire month from Excel upload .

This means scenario will be like this once sales Order is created from upload program .

For SO1

Delivery date         01.06.2016

Goods issue date   01.06.2016

Loading date            01.06.2016

Material avail.date 01.06.2016

Transportation Plan. Date 01.06.2016

For SO2

Delivery date         02.06.2016

Goods issue date   02.06.2016

Loading date            02.06.2016

Material avail.date 02.06.2016

Transportation Plan. Date 02.06.2016

For SO3

Delivery date         03.06.2016

Goods issue date   03.06.2016

Loading date            03.06.2016

Material avail.date 03.06.2016

Transportation Plan. Date 03.06.2016

I  am able to achieve these dates by standard SAP . But at the time of PGI , system is asking for PGI date which should be equal to System date . I  am looking for Good issue date as its in sales Order .

     Hoping If this can be achieved in Standard SAP.