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Sales order and purchase order have same number

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Posted on by CU09071021-0

Hi Experts,

I want to set a same sales order and purchase order number to track both orders simultaneously. Currently business central let me make a purchase order from sales order but both have different number. Even after keeping same number series, it gives subsequent number for both orders.

I want to set OR-223 for sales order and purchase order both.

Is business central have any functionality to generate same no for two different documents.

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Dynamics 365 Business Central

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Holly Huffman 6,554 Super User 2026 Season 1 on at

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Thanks for your question.
I believe this may be a duplicate of a previous inquiry regarding using the same Sales Order and Purchase Order number. It’s possible the question was submitted twice by accident.
However, you can find my full response to the original question here: Same salees order and purchase order number
If this is a different scenario or you need further clarification, feel free to let me know!

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YUN ZHU 101,995 Super User 2026 Season 1 on at

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If you want it to be exactly the same, that is, the quantity of the Sales Order and the Purchase Order is exactly the same? 1 to 1?

If so, please do not share the same No. Series. Set two identical No. Series, one for Sales Order and one for Purchase Order.

This will be the same when you take the next number.

Hope this helps.

Thanks.

ZHU

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Jeffrey Bulanadi 9,128 Super User 2026 Season 1 on at

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Hi,

You're asking whether BC can assign the same document number like OR-223 to both a sales order and a purchase order, so you can track them together. Based on your screenshot, I can see you've already configured both PO and S-ORD to use the same number series (OR-10001 to OR-99999), and both have OR-10001 as the last number used.

That’s a great start, and yes—it’s possible to manually assign the same number to both documents, but it requires a small adjustment.

Here’s what to do:

1. Enable Manual Numbering for the Shared Series

Go to the No. Series page

Locate the shared series (OR-10001 to OR-99999)

Check the box for Manual Nos.

This allows you to manually enter a number like OR-223 when creating either document

2. Assign the Same Series to Both Document Types

In Sales & Receivables Setup, assign the shared series to Sales Orders

In Purchases & Payables Setup, assign the same series to Purchase Orders

With manual numbering enabled, you can now enter the same number for both

3. Be Careful with Conflicts

Business Central won’t prevent you from using the same number across different document types

But it will block duplicates within the same type—so make sure OR-223 isn’t already used for another sales or purchase order

Here’s a helpful link showing how to configure manual numbering and align document numbers across modules:

Manual Numbering for Sales and Purchase Documents – Dynamics 365 Lab
Create Number Series – Microsoft Learn
Linking Purchase Orders to Sales Orders – D365 Experts

If you find this helpful, feel free to mark this as the suggested or verified answer.

Cheers
Jeffrey

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Jun Wang 8,220 Moderator on at

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If you use no. series to make the PO and SO the same number, it will be challenging cause the PO is created from SO automatically. It seems you may need a customization for that. But you could use the same external document no. to manually keep track of those orders.

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Teddy Herryanto (Th... 14,306 Super User 2026 Season 1 on at

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I don't recommend using the same number. Having a different number makes it easier to troubleshoot and identify documents.

You also need to do customisation or some extra manual steps to make both document number the same.

Better to use the same Your Reference or other field to link them both.

There is also Special Order or Drop Shipment feature to link between sales and purchase order which maybe suitable for your requirement.

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Tech-Lucky 1,288 Moderator on at

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Not a Good Practice

Use different numbers but maintain a link between SO and PO using:

Drop Shipment / Special Order features (they create links internally).

Or store the SO number in a custom field or External Document No. on the PO.

Use custom reports or pages to show linked orders.

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Jainam M. Kothari 17,024 Super User 2026 Season 1 on at

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Hello,

I totally agree with the Experts that it is not good Practice to maintain Same No. in SO and PO.

You can use the "External Document No." for the same.

And you have the Process that 1 SO always be connected against 1 PO then you can use the "Drop Shipment / Special Order" Functionalities.

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Kamal Khakhkhar 3,428 on at

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Hii There as per requirement It will allow you to assign no series in Sales & Purchase, as per that If you assign and post it will create a another document it will put some of gap in series,, if its ok for you you can assign .

Its Not advisable.

If you Found Answer Mark It Answered.

Thank You.

Kamal Khakhkhar.

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