+1I’m getting purchase requisitions for something we have stock of; it’s being driven by what I believe is our shop orders having a due date after the customer planned ship date. I know the easy solution is to not change either of those dates, however is there a setting that would eliminate that?
Just for visibility there is no demand loaded into the upcoming months either.
Hello,
In above MS Level 1 part screenshot we don’t see the actual demand nor the master production schedule receipt. But I bet they are out there on the right hand side. (Well perhaps not today… since time flies)
Since we don’t have MRP action proposals logic in MS Level 1 calculation, that will say “Late Order - move SO from date X to date Y, we have to mitigate above problem in other ways.
You get this because you are using the setup “Create SORs from MRP instead of MS”. Kind of Assemble-To-Order, and procure sub-assemblies and purchase parts through the parent part MPS. I think functionality is good in many cases. So don’t change that flag.
Instead…perhaps you can set demand & planning time fence to some X days ahead, and also set the Gen Fixed MS flag to “false”. My thinking here is within X number of days you should not let MS through MRP generate component demands, because we are in the interval where you should have your shop orders in place, and it is the shop orders component demands that should drive MRP, and create the PO Reqs. Well in this near future we should see inventory onhand and open Purchase Order Line supply.
Did this help? Lots of words.
You have a really good question.
-Mats
+1Hello,
In above MS Level 1 part screenshot we don’t see the actual demand nor the master production schedule receipt. But I bet they are out there on the right hand side. (Well perhaps not today… since time flies)
Since we don’t have MRP action proposals logic in MS Level 1 calculation, that will say “Late Order - move SO from date X to date Y, we have to mitigate above problem in other ways.
You get this because you are using the setup “Create SORs from MRP instead of MS”. Kind of Assemble-To-Order, and procure sub-assemblies and purchase parts through the parent part MPS. I think functionality is good in many cases. So don’t change that flag.
Instead…perhaps you can set demand & planning time fence to some X days ahead, and also set the Gen Fixed MS flag to “false”. My thinking here is within X number of days you should not let MS through MRP generate component demands, because we are in the interval where you should have your shop orders in place, and it is the shop orders component demands that should drive MRP, and create the PO Reqs. Well in this near future we should see inventory onhand and open Purchase Order Line supply.
Did this help? Lots of words.
You have a really good question.
-Mats
Yes! That does help, I’m going to adjust the time fences on a few parts that have had this issue and will check the results.
Thank you
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