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Manually link PO to Sales Order

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Posted on by NAV2BC02

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Is there a way to manually link a PO to Sales Order after both documents were already created.

We cannot use the requisition worksheet anymore or through the sales order because the PO has already been created and sent to vendor. We want to create a Drop Shop link after the fact so BC will ship the sales order when the drop shop PO is received.

Thanks,

NAV2BC

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Dynamics 365 Business Central

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Mohana Yadav 61,204 Super User 2026 Season 1 on at

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You have to add Purchasing code, Sales Order No., Sales Order Line No. fields to Purchase Order Subform page and fill the fields.

Similarly, add Purchasing code, Purchase Order No., Purchase Order Line No. fields to Sales Order Subform page and fill manually.

Note; We have to add fields using Pageextension using AL code

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RockwithNav 8,963 Super User 2026 Season 1 on at

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If you just wish to go and establish a linking between SO and PO, you can follow exactly what Mohana suggested but for Drop Shipment there's no need to establish this connection, you can do anyway. Let me know if I misunderstood something.

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Mansi Soni 8,951 Super User 2026 Season 1 on at

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Hello @NAV2BC02,

The drop shipment link can only be established during creation. Other than that, you’d need to build a small customization to allow linking after the fact-standard BC doesn’t support it.

Hope this answer will help you as well!

Regards,
Mansi Soni

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Suresh Kulla 50,269 Super User 2026 Season 1 on at

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PO and SO are linked using the fields on the SalesLine and PurchaseLine; on the PurchaseLine, it uses "Sales Order No." / "Sales Order Line No." and on Sales Line, the Drop Shipment or Special Order Boolean flag, you can set those by adding fields and assigning them manually or using a configuration package

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YUN ZHU 99,090 Super User 2026 Season 1 on at

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Hi, Just to add some information, in addition to Drop Shipment and Special Order, Microsoft also introduced the following method.

How to link purchase orders to a sales order in Dynamics 365 Business Central

https://youtu.be/IiqNy1XezRU?si=Hbm6RUdlAcuqo_z1

Hope this helps as well.

Thanks.

ZHU

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KasparsSemjonovs 4,817 Super User 2026 Season 1 on at

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You can try to create a drop shipment SO / PO in test system and check what table entries and fields are filled in. Then You can try to populate the needed values for the existing documents (via configuration packages). This better also try in test system first.

Standard way possible at this moment is to Reserve items for the Sales Order, from the needed PO. This way You will not be able to sell/use these purchased items elsewhere, but it will not be a drop shipment.. You will need to post a receive of the items from Vendor, and post a shipment to customer.

P.S.
If the PO was already sent to Vendor, this doesn't mean You cant modify it. The number will stay the same - You can just delete the lines, and use the Actions > Drop shipment > Get Sales Order - to create the lines, in this PO.

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DAnny3211 11,417 Super User 2026 Season 1 on at

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Hi NAV2BC,

Yes, it’s possible to manually link a Purchase Order to a Sales Order in Business Central after both documents have been created, even if the PO has already been sent to the vendor. Since the standard Drop Shipment flow typically requires the PO to be created from the Sales Order, doing it manually involves a few extra steps.

Here’s how you can approach it:

Ensure both documents are correctly set up: The Sales Order should be open and the PO should be marked as a drop shipment.

Manually link the PO to the Sales Order:

Go to the Purchase Order.

In the Line section, ensure the Drop Shipment field is checked.

Then, use the Drop Shipment Link action (available in the line or through the related menu) to manually associate the PO line with the corresponding Sales Order line.

Verify the link: Once linked, Business Central should treat the PO as part of the drop shipment process, and the Sales Order will be fulfilled when the PO is received.

This manual linking is useful when the PO was created outside the standard flow but still needs to be part of the drop shipment process.

Thanks and best regards,

Daniele

Note: This response was prepared with support from Copilot to ensure clarity and completeness.

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Sohail Ahmed 11,169 Super User 2026 Season 1 on at

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Adding more details

https://www.elian-solutions.com/business-central-how-to-create-a-purchase-order-from-a-sales-order/#:~:text=In%20the%20%E2%80%9CVendor%20No.%E2%80%9D,Document%20%2D%3E%20Create%20Purchase%20Orders.

✅ Mark the checkbox below if this answer helped you.

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Andrés Arias 5,166 Super User 2026 Season 1 on at

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Hello,

I hope the following information can help you:

https://learn.microsoft.com/en-us/dynamics365/business-central/sales-how-drop-shipment

I hope I can help.

Regards,

Andrés

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Khushbu Rajvi. 22,132 Super User 2026 Season 1 on at

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https://www.youtube.com/watch?v=IiqNy1XezRU

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