Re: items that are both MPS and MRP

>  From:    brad.henson@countryfresh.com (Brad Henson)

We have a similar scenario in which we make wire on reels of various 
combinations of metal alloys & thickness & colors & stripes ... this has our 
internal part # & it is used in our operations, with demand driven by 
re-supply orders, but some of our customers also want to order our reels 
direct ... for each such scenario, we issue a part # unique to the customer, 
whose BOM is one of our internal part #, with demand driven by the customer 
orders.

However, for setup efficiency, we manufacture to all demand in consolidated 
runs.

We do not use planners, but rather let MPS & MRP drive everything.

I speculate that the problems you might be having are that 

once a shop order is issued to fill a customer or resupply order demand, the 
lower BOM demand is no longer driven by the customer or resupply order, but 
rather by the shop order - the problem for us here is if the customer order 
gets a due date change, MRP reschedules the parent shop order but if no one 
knows to change the date in the shop order, the lower components do not know 
the schedule has changed.  You have to be using exception reports to 
illuminate scenarios where the planned production no longer matches the end 
demands.

if you have demand for both cases & carts due ON THE SAME DAY, you cannot 
easily differentiate same item / date requirements, so you need to have a 
different part numbering system going as far down the product structure as is 
neccessary to keep the operations separated

>  we are a company that sells products in cases (4 units per) to the smaller
>  stores, and the same item on carts (120 units per) to larger customers.  we
>  need to make separate shop orders for each and have assigned separate item
>  numbers.
>  
>  the BOM for the cart has the individual unit as a child because we make it
>  first (that's where we collect the data) and then want to backflush the
>  inventory to make the carts.
>  
>  MPS creates planned orders for both the case and the cart.  the units show 
a
>  mfg allocation to achieve the cart sales, but MRP can't create a planned
>  order for it because MPS already did in insufficient quantity.
>  
>  are planners expected to add the allocation to the planned order before
>  releasing?  is there a way i haven't thought of?

Al Macintyre  ©¿©
BPCS 405 CD mixed mode/400 V4R3 security 30
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