User Exit for Overall Availability Check

Question:
Is there a User Exit that can be used to perform the overall material availability check upon saving the Order ? I'm aware of the cofig settings in OPJK, but I want to make sure that if material shortages exists the Matl Shortage message always appears and that only seems to happen at time of Release or manually called. Also, if material shortages exist, is there anywhere to 'collectively' see the leadtimes of those materials. I'm aware of the Availability List, but it lacks the leadtime info and I know you can go to the individual line item and perform the availabiltiy check, line-by-line, but even then if there's an outstanding PO the item, you don't see the Delivery date.
Thanks for any help or suggestions !
Answer:
guest7788,
My only suggestion is to try using function module CO_ZA_AVAILABILITY_CHK_ORDER in user-exit IWO10009 (check for 'Save' event)
See program LCOIHF31 for details

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