Thanks Jeevan,
OPL8 = Standard profiles 000001/000002
OPJK = We check ATP upon REL, allow REL even with missing parts due to the business side, do ATP check as opposed to check against PIR, and use check rule PP.
OPJJ = 02/A include all reservations, 02/B include all reservations, 02/PP include all reservations
If I delete my delivery leaving just the STO requirement (ORD.DS element) the system confirms my production order due in 3 days of course. Then I recreate my delivery and when my hourly COMAC job runs it unconfirms my production order and allocates my inventory to next months delivery.
I know I must be doing something dumb.
Here is an image of my ATP from the stock requirements list.
Thanks again,
David K