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Prepayments/Partial Payments on Service Orders

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Posted on by MR-24110858-0

Hi everyone,

I’m looking for some guidance on handling partial payments / prepayments for Service Orders in Microsoft Dynamics NAV / Business Central.

From what I understand, the standard prepayment functionality isn’t available on Service Orders, and I’ve seen suggestions in the community about using a Sales Order as a workaround and then linking it back to the Service Order.

Could anyone share an example of how you’ve implemented this in practice?
Specifically:

How do you manage situations where parts or labour need to be prepaid before work starts?
How do you structure and link the Sales Order to the Service Order in your process?
Any tips or best practices to make this workflow smooth for finance and service teams?

Any guidance, examples, or process descriptions would be greatly appreciated.

Thank you!

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Microsoft Dynamics NAV

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Jainam M. Kothari 15,732 Super User 2026 Season 1 on at

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Hello,

Since prepayment functionality isn’t available on Service Orders in Business Central, the common workaround is to create a linked Sales Order for the deposit, using its built-in prepayment features.

The process typically involves creating the Service Order for operational details, then generating a Sales Order with a line like “Prepayment for Service Order [No.]” and applying a prepayment percentage or amount.

Finance posts the prepayment invoice and receives payment before work starts, while the Service Order remains the execution document.

At completion, the Service Invoice is posted and the prepayment is applied against it.

Best practices include clear naming, maintaining a link between documents (via custom fields or reports), and optionally automating the creation of the Sales Order from the Service Order for smoother workflows.

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Valentin Castravet 32,157 Super User 2026 Season 1 on at

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I wouldn’t recommend using sales orders for prepayments on service orders. That suggestion doesn’t make sense in practice and usually comes from people relying on AI-generated answers.

If you post a prepayment invoice from a sales order, you eventually have to post the final invoice from that same sales order. But if the final invoice needs to be posted from the service order, how are you supposed to post it from the sales order as well? It doesn't make any sense.

And even if someone tries to use a sales order with a prepayment line going to a G/L account instead of using actual prepayment functionality, it still becomes too cumbersome. You end up manually reconciling service orders with sales orders for no reason. If you’re going to post a G/L prepayment line, you may as well post it directly on the service order; there's no benefit to using a sales order.

If you need prepayments on service orders, the only options are:

Partially invoice the service line (this effectively acts as a prepayment), or

Add a separate service order line using a G/L account for the prepayment amount.

Valentin Castravet
Work: Zander ERP Services
Blog: Dynamics 365 Business Central Insights
LinkedIn: www.linkedin.com/in/valentin-c-0500a247/

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OussamaSabbouh 12,808 Super User 2026 Season 1 on at

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Hello,

Service Orders can’t do prepayments.

Create a Sales Order for the deposit, post the prepayment invoice, link it to the Service Order, and apply the payment when you post the final service invoice.

Regards,

Oussama Sabbouh

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YUN ZHU 99,055 Super User 2026 Season 1 on at

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Hopefully, the following discussion will give you some hints.

https://community.dynamics.com/forums/thread/details/?threadid=f34f64bb-c17b-ef11-a671-6045bdd6e4e4

https://community.dynamics.com/forums/thread/details/?threadid=6b3d1fe7-bd55-ef11-a317-0022481d08e0

Thanks

ZHU

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Rishabh Kanaskar 6,219 Super User 2026 Season 1 on at

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Hi,

A suggestion: Post a customer payment or deposit via a general journal and apply it later when invoicing the Service Order.

Thanks

Rishabh

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