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MRP planning Purchase REQ per fixed lot size

Former Member
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I have materials which have MRP type PD with fixed lot size of 20 pieces. Safety stock = 200 pieces. MRP run results in 10 preqs of 20 pieces each. I would like to have 1 Preq of 200 pieces. How can this be achieved?



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Former Member
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This is because of Lot size "FX" you maintained as 20.

For FX lot size system will divide the total qty as per the fixed lot qty & throw that much of PR for that stock.

So Safety stock = 200, FX =20 so PR will be 200/20 = 10 PRs

If you want 1 PR for your safety stock, then change the Lot size to "EX" then system will throw 1 PR for 200 qty as per your Safety stock