Is possible to maintain MRP type as PD with re-order point?

Hi guru,
my user maintain material master of one raw material like this
MRP type : PD
Safety Stock : 1000
Lot Size : MB
Minimum Lot size : 3000
as they maintain safety stock 1000 , this will last long for 10 days and this material's lead time in purchasing for 12-15 day.
When they run for MRP and check in MD04. they give me requirement like this.
"when i run MRP, I want system to create PR when this material's stock fall under 3000"
So i suggest they to change from PD to VB for use re-order point . but they not agree with my suggest because they want to see dependent requirement list when check in MD04 and their reason is...
"My material usage can't predictable so i can't forecast"
when i suggest them to add re-order point to safety stock. as alway, they disagree.
so i think, is it possible to use PD or other type of MRP that show list of dependent requirement with able to use re-order point? if it's possible, How?
any suggestion is fine. point for useful answer
regards,
Kittisak.B

Dear,
If your user is willing to have requirement below 3000 then you should ask him to keep Safety stock as 3000 only & not 1000 because there is no meaning in keeping it 1000.You keep safety stock 3000 so as soon as stock is falling below 3000 system will generate procurement element ( requirement) in next MRP run.So even there is no need to maintain reorder point planning VB as MRP type as your user is not willing for it.
Else you can maintain VB and reorder point as 3000 which will also furnish you the same result.In that case safety stock has not much significance.However if you maintain safety stock more than or equal to reorder point then it will serve your purpose.There is no meaning putting it below reorder point.
Hope this helps resolve your problem.
Revert with more details in case any doubt.
Regards,
Tejas

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Edited by: nivedita yadav on May 7, 2010 2:31 PM

Sailendra,
your post is confusing, how you want to different MRP type for same material?
and why its needed?
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[http://help.sap.com/printdocu/core/Print46c/en/data/pdf/PPMRP/PPMRP.pdf]
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Is possible to maintain MRP type as PD with re-order point?

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