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Copy Sales Order's External Document No into Purchase Order's Vendor Invoice No

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Posted on by Suvarna

Hello,

I am new to Business Central Development and customization. I want to display Sales Order's External Document No into Purchase Order's Vendor Invoice No.

I am creating Purchase Order through Sales Order. When I click on create purchase order that time only I want to collect Sales Order's External Document No and save it on Purchase Order. Or else directly copy this External Document No into Purchase Order's Vendor Invoice No.

How to do ?

Please help...

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Nitin Verma 21,812 Moderator on at

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Hi,

You can call Event OnCreatePurchaseHeaderOnBeforeInsert from Codeunit 1314. and pass the sales header field's value to Purchase Header's field.

Thanks.

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Suvarna on at

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Hi Nitin,

Thanks for your reply. Can you little bit elaborate how to do it? I am new for development. Please explain step by step that how to call this code unit 1314. Then how to modify it?

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Nitin Verma 21,812 Moderator on at

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Hi,

Please declare below event in any Codeunit

[EventSubscriber(ObjectType::Codeunit, Codeunit::"Purch. Doc. From Sales Doc.", 'OnCreatePurchaseHeaderOnBeforeInsert', '', false, false)]

local procedure OnCreatePurchaseHeaderOnBeforeInsertPurch(var PurchaseHeader: Record "Purchase Header"; SalesHeader: Record "Sales Header"; Vendor: Record Vendor)

begin

PurchaseHeader."Vendor Invoice No." := SalesHeader."External Document No.";

end;

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Ben Baxter 7,178 Super User 2026 Season 2 on at

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This doesn't sound like a good idea. If you do what you are requesting, you will have no place to record the actual Vendor's invoice number when it comes in.

If you want to see your Customer's PO number on the Purchase Order, simply add a new field and have the External Doc. No. populate the new field.

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Suvarna on at

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Hi Nitin,

it's giving error : The member referenced by event subscriber 'OnCreatePurchaseHeaderOnBeforeInsertPurch' parameter 'Vendor' is not found.

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Nitin Verma 21,812 Moderator on at

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Hi,

Please try this.

[EventSubscriber(ObjectType::Codeunit, Codeunit::"Purch. Doc. From Sales Doc.", 'OnCreatePurchaseHeaderOnBeforeInsert', '', false, false)]

local procedure OnCreatePurchaseHeaderOnBeforeInsertPurch(var PurchaseHeader: Record "Purchase Header"; SalesHeader: Record "Sales Header")

begin

PurchaseHeader."Vendor Invoice No." := SalesHeader."External Document No.";

end;

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Suvarna on at

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Hi Nitin,

I already tried but then code is not working. External Document no is not fetching in PO.

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