Thanks for your comments so far. Here is some additional information regarding our objectives. The plant we are converting is a machine manufacturing plant. Their bills contain 1000's of components. Currently this plant is on a stand alone system but once we convert them they will be in our normal MAPICS environment which supports several other plants and centralized order entry. The message below describes why they want to continue processing net change MRP during the day in MAPICS. -----Original Message----- From: Benoit, Paul Sent: Thursday, October 06, 2005 10:08 AM To: Morrison, Doug Cc: Help Desk - IT Subject: RE: [MAPICS-L] Net Change MRP Doug, This request is form our machine manufacturing plant. In there current system they use a net change MRP run to evaluate the actions required for a new customer order for a machine. These machines have several levels in the bill of material and thousands of parts. The net change MRP tells them what they have to order. They use that 'shortage' information to: 1. Provide a promise ship date 2. Release purchase orders and manufacturing orders for the items with the longest lead times. This saves one day and can make a difference in the very competitive delivery times required for these machines. Best regards, Paul -----Original Message----- From: Morrison, Doug Sent: Thursday, October 06, 2005 9:40 AM To: Benoit, Paul Cc: Help Desk - IT Subject: FW: [MAPICS-L] Net Change MRP Paul, Can you provide some details as to why we want to run MRP Net Change more than once a day. Doug -----Original Message----- From: mapics-l-bounces@xxxxxxxxxxxx [mailto:mapics-l-bounces@xxxxxxxxxxxx] On Behalf Of Joseph Phelan Sent: Thursday, October 06, 2005 9:34 AM To: MAPICS ERP System Discussion Subject: Re: [MAPICS-L] Net Change MRP Doug, I agree with Dale...you may want to investigate an Advanced Planning and Scheduling (APS) solution. But as was previously mentioned, what business problem are you trying to resolve? -----Original Message----- From: mapics-l-bounces@xxxxxxxxxxxx [mailto:mapics-l-bounces@xxxxxxxxxxxx] On Behalf Of DaleGindlesperger@xxxxxxxxxxx Sent: Thursday, October 06, 2005 9:32 AM To: MAPICS ERP System Discussion Subject: Re: [MAPICS-L] Net Change MRP Doug, do you really need MRP more than once a day? Can I ask you why? You may be a candidate for one of the APS tools... Dale Gindlesperger IT Manager/Special Projects Leader Fleetwood Folding Trailers, Inc. 258 Beacon Street Somerset, PA 15501 -----Original Message----- From: <dmorrison@xxxxxxxxxxxxxx> Sent: Thursday, October 06, 2005 9:21 AM To: <MAPICS-L@xxxxxxxxxxxx> Subject: Net Change MRP We are running MAPICS XAR6 and are in the process of converting one of our companies from another system to our MAPICS system. We are currently running a daily full generation MRP run during our nightly batch process. The facility we now converting to MAPICS wants to be able to run Net Change MRP during the day. In MAPICS you can't run any MRP if order entry is active which will be the case for us. Has anyone developed a like net change process that could be run during the day? Or do you know of any third part packages that would meet this need? As always thanks in advance for your input.