We use Block Planning with CDP/CTP Process & products are set up for immediate planning on the Product Masters. Following situation, Sales Order is not returning a confirmation date. This should be achieved using std SAP's process. Let me know if you've faced this issue before -
Sales Order Requirement date = 02/15/2012
Block Availability date = 02/19/2012
ATP Result - no confirmation to Sales Order
Since Block (with matching characteristics) is available on 02/19/2012 & we've a strategy profile with Scheduling Strategy saying BACKWARD + REVERSE (Forward), system should have looked @ the Block on 02/19/2012 & returned a confirmation date of say 02/20/2012.