In MD04 we have a material avail date of 12.05.2011. The order was then changed to 13.05.2011 delivery date to reflect this availability, but then delivery time was added e.g GI time and route time which then showed the sales order in MD04 as 18.05.2011. However, if we run the availability and take the 18.05.2011 and key this in the delivery date, it shows in MD04 as 13.05.2011. It seems like the availability check is only looking backwards, and I can't find a setting in ATP relating to this. In MM they have foward and back consumption in days on MRP3. Do these fields impact this.