Shipment date price in GR

Hi guys,

I have an issue with GR price.

We have several cases where the buyers negociate the prices as being valid the date the shipment is sent.

So i need to find a way to make the GR price picked up from the date of the shipment.

Is that possible?

We are currently using price date cat 5, which is not helping because if an order was placed in march and since than we have had a price update in fabruary and the GR is booked in may, than the price picke dup by the GR is the february one instead of