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Planning for a single BOM

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Posted on by shankargv

Is there a way for MRP to plan for the sub-components and items of a single BOM only? Customer doesn’t want MRP to run for all the items.

The desired functionality is the enter the Top level item# or BOM# and it should run MRP for all the components in the BOM.

Can we do this in base BC? If not is there a 3rd party that does it?

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MahGah 15,613 on at

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Hi

I believe this is possible. You can set the top level item and all other items "Reordering Policy" to Order. Then for the sub-items that have Replenishment System set to Prod. Order or Assembly make sure MFG Policy / Assm Policy also set to Make to Order (no need for Purchasing item).

Then make sure you have demand for the top level part.

Now when you go to Planning Worksheet then Calculate Regenerate ... in the new page add only that one item and run the planning worksheet

Try this in Sandbox first with handful items.

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shankargv 10 on at

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Tried this but it didnt work

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MahGah 15,613 on at

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I am just curious to know which part did not work? I mean it can help me as well for future (if I have such a requirement).

Thanks

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shankargv 10 on at

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The calc regen plan, when you enter the top level item it plans only for it... doesnt plan for the components and subs

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MahGah 15,613 on at

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Ok, I think I figured it out. I copied my setup below but I believe you do not need it.

I realized that if I run for one item it does not circle through all items. What I did is I made sure all items for this purpose have something in common. I used Item Category Code and assigned Item Category Code test to all of them. Then I ran Planning Worksheet. Add Item Category to the prepare and selected test (left Item No blank) and that did work. I also turned on MRP/MPS and Respect xxxx

Note in MFG setup I have Component at location Blue. you may need to set that for the location you need.

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shankargv 10 on at

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This wont work for me because my components can be part of many BOMs, so I cant assign a common value to a field like you did on category code.

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MahGah 15,613 on at

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if you are ok that when MRP runs capture the other demands for those parts than maybe you can just add one field to item card and use it. But you will not have any method to eliminate other demands for that item.

Or you can use one of fields in item card (such as Description 2 or mark those items as Critical and use Critical filter) that you do not have much use for it.

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Guy McKenzie 1,340 on at

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This is possible under very specific circumstances only.

If using production, set all prod. Order items to Reordering policy = Order and manufacturing policy = Make to order.

When you create a production order for the parent item, all the sub-assemblies are created as production order lines within the same production order.

Child lines are indented under parent items.

If you use order planning rather than the planning worksheet, you can see supply gaps for all assemblies / materials for that specific order. However order planning has restricted planning capabilities because it behaves in an order by order way. It seems that is what you desire though.

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