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Assembly Item in BC that is also directly Purchasable as Finished Goods?

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Posted on by AGBT900

Hi everyone, we’re evaluating a business requirement and need guidance:

In our process, certain items are defined as assembly items because components are normally assembled internally. However, in several business scenarios each month, we need to buy the finished assembly directly from a vendor instead of building it.

In QuickBooks, there’s a simple checkbox to mark an item as both “buildable” and “purchasable as finished goods.” In Business Central, we cannot find an equivalent setting on the Item Card.

Here’s what we need:

The item must be assembly-buildable via an Assembly BOM
The same item must optionally be purchased as a finished good on a Purchase Order
The system should not force assembly and should allow buying finished stock instead

Questions:

Is this supported natively in standard Business Central?
If not, are there recommended workarounds?
Has anyone implemented this in real business scenarios?

Appreciate your insights!

Categories:

Dynamics 365 Business Central

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AndrewThomas81 156 on at

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There is no restriction to prevent purchasing an item which would normally be replenished by assembly.

If you are going to utilise planning functionality, you would set the replensihment system on the item card (Purchase/Asssembly) to reflect the most common method.

Selecting either would not restrict populating the Purchase data in the replenishment fast tab:

Another option would be to create 2 items, an assembled one and a purchased one - or possibly create stockkeeping units if seperating the replenishment by location would be more appropriate

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Alex A 3,001 Super User 2026 Season 1 on at

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The system will let you do both regardless of how you set the Item card. However, you will probably want to set the Replenishment System on the Item card to 'Assembly' if by "assembly" you mean kitting, or Prod. Order if by "assembly" you mean manufacturing.

The one you choose will make for recommendation by the system planning features (if you use them) but you can still can go either way.

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Ben Baxter 6,815 Super User 2026 Season 1 on at

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I agree with the above two replies. You should set the Replenishment System on the Item/SKU to your standard process. If 80% of the time you assemble the Item, set it to Assembly. If 80% of the time you purchase the Item, set it to Purchase.

This does not exclude you from buying the product from a Vendor. As Andrew pointed out, you can populate the Vendor field on the Item record and during Planning (assuming you are using planning) you switch the Replenishment System from the default (Assembly) over to Purchase and it will create a Purchase Order instead of an Assembly Order.

If you are not using Planning and manually creating your orders, simply create a Purchase Order instead of an Assembly Order.

P.S. I would not recommend creating a second Item, this complicates the history and it means your Sales team has to know how the Item is going to be replenished, and that shouldn't be a role of the salesperson.

Best Regards,

Ben Baxter

Accent Software Inc

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YUN ZHU 97,897 Super User 2026 Season 1 on at

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As far as I know, there are no restrictions; you can buy the finished product directly.

PS: Dynamics 365 Business Central: Assembly Management (Kitting) without the need of manufacturing functionality

https://yzhums.com/4491/

Thanks.

ZHU

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OussamaSabbouh 10,862 Super User 2026 Season 1 on at

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Hello,

Business Central allows the same item to be both assembly-built and purchased. The Assembly BOM only defines how the item can be assembled; it doesn’t force assembly or block purchasing. You can create Assembly Orders when building internally or simply use Purchase Orders to buy the finished item from a vendor, and both will increase inventory of the same item. The Replenishment System = Assembly just sets the default supply method, not a restriction, so no customization or workaround is required.

Regards,
Oussama Sabbouh

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Dhiren Nagar 2,530 Super User 2026 Season 1 on at

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Hi,

This is very well possible.

In business central if for any item you have defined an Assembly BOM, you can Assemble it. Here is the guide - https://learn.microsoft.com/en-us/dynamics365/business-central/assembly-assemble-items

Also there is no restriction on Purchasing the same item from vendor, even through your replenishment is Purchase.

Please note that Replenishment option in BC is only for how you generally replenish your items and is not for restricting your item to be procured in any other way.

✅ Tick the checkbox below to mark the answer as verified, if it helped resolve your question.

Regards,

Dhiren.

LinkedIn - https://www.linkedin.com/in/ca-dhiren-nagar-5079081b2/

Blog - https://dhirennagar.blogspot.com/

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Aziz Skhiri 51 on at

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Hello,

Yes, this is native in Dynamics 365 Business Central no extensions, no code, nothing extra needed.

Just set up your Assembly BOM exactly as you normally would (so you can still build it internally whenever you want).On the Item Card, simply set Replenishment System = Assembly (or Purchase if buying is more common). That field only controls the default suggestion in the planning worksheet it does not block or force anything.

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