RE: JBA ML - MRP and DRP

The demand will be seen twice if you've got both stockrooms defined in your
MPS (MRP) model. My suggestion is that you only have your central plant
stockroom defined to MRP. The DRP orders will be seen as the demand on
this, together with sales orders placed directly on that stockroom. The DRP
orders are supply only at the receiving stockroom.

I've just implemented exactly this scenario, and it works.

Peter Joel
Saltway Ltd
07884 306501

-----Original Message-----
From:   Stuart Sandler [SMTP:SSandler@KREBS.COM]
Sent:   Tuesday, December 04, 2001 8:52 PM
To:     'jbausers-l@midrange.com'
Subject:        JBA ML - MRP and DRP

We are using both MRP and DRP and have discovered a problem that I wondered
if anyone else had encountered.

We use DRP only to transfer goods from stockroom to stockroom (for example
from our stockroom in Tucson to one in Canada). In the past, we used sales
orders with no selling price, but had to do monthly journal entries to
reverse the costs. When we upgraded to System 21, we purchased DRP to
eliminate this.

Now, we have found out that System 21 MRP does not see 'DRP' orders as
supply, but rather as demand. In other words, if we have a requirement for
30 widgets, and happen to have 15 in stockroom 10 and then create a DRP
order to transfer them to stockroom 01, MRP thinks that we have a demand
for
45 and tells us to order that many, instead of seeing the 15 in stockroom
10
as a potential supply.

I turned this problem into the GEAC help desk, thinking we had simply set
up
something incorrectly, but they confirm that DRP and MRP will not work
together in this type of example.

If any of you have any suggestions, or if you have encountered this and
have
an idea, I would appreciate hearing from you.

Thanks in advance.

Stuart Sandler
Director of Information Systems
Krebs Engineers
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