I have a sales order with 16 releases over the next 12 months. The part has two details, setup as plan-as-asm. When I run MRP, it suggests 16 jobs to cover the demand for the top level part, and it suggests 16 jobs for each detail part. 48 total jobs! In reality, we will look at the sales orders in…

[image] NateS: I am floundering around quite a bit here… I realize I am not the man for the job. There are no others to do it, so I just keep trying. And I’m glad that you have. I have gleaned some nuggets on this thread from @jkane , @tsmith , @cpilinko , and @Kovacs13 . Thanks for asking!

I went back and set top part to non-stock = false. Then reran MRP. Now it still suggests the correct amount: [Screenshot 2025-12-01 134757] I am so confused…

You will want to mark Lock Quantity on the manual jobs you created (99999/1 and /2) so that MRP does not try to reduce the job and replace it with the new U- suggestions. MRP is a just-in-time system and it sees that you’re making “too much” “too early” on those manual jobs, so it’s trying to reduce…

so going back to my RULES for MRP: Never lie to MRP… or it will lie back: Order Dates and quantities should reflect what the customer wants/needs… not how you plan to make the parts Part Min/max/safety & Min/max order quatities and Order Multiples, and Days of supply should be set for the practic…

[image] timshuwy: Never lie to MRP… or it will lie back I would like to not lie to MRP. Help me get there! [image] timshuwy: Order Dates and quantities should reflect what the customer wants/needs… not how you plan to make the parts This would be fine if we could split the job at arbi…

[image] tsmith: mark Lock Quantity on the manual jobs you created (99999/1 and /2 That really helped! After running MRP I have suggestions for just 4 jobs! 2 for each detail. Perfect! Now if only those jobs were make to job (to the main job) instead of make to stock. [Screenshot 2025-12-01 …

If you make extras, set the part to stock and set runout to true. Write a BPM that will set Stock and Runout parts to NonStock when quantity drops to 0.

You said you don’t need to always split the jobs but sometimes you do. When you split jobs would you have to make new top level jobs? just adjust the demand links as necessary. If you have SO Line 1 Release 1 for 50 parts. And you have 1 job to make those 50, but you can only make 20. Then change …

[image] cpilinko: When you split jobs would you have to make new top level jobs? just adjust the demand links as necessary. I see where you are going with this. We tried this approach once. If we have to split the detail job, then there is a good chance we will be splitting the top level job …

There is some excellent information in this thread. I would also like to suggest you review your method of manufacture for every level feeding into the top level parts you are making. Pull As Assembly: assembly made within the parent job Plan As Assembly: assembly made in separate job None selecte…

Still Trying to Do MRP

Kinetic ERP

JasonMcD (Jason McDermott) December 3, 2025, 3:37pm 79

Nope. My Idea for this expired. You should make a new one. I have always wanted that.

We have tried to work around it. I have not seen anyone succeed.

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Still Trying to Do MRP

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