Marking invoices as paid when shipped and posted via API

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Posted on by JI-22070805-0

Hi,

I have created an app to sync sales from our woocommerce store to BC. The final step is to ship and invoice the order as I am only syncing completed orders for now. However these are all marked as unpaid and it looks like the api won’t let me mark them as paid and remove the outstanding balance for a customer.

Is there any easy workaround for this? I mark all customers from Woocommerce with unique payment terms but once the order is synced it is already paid.

many thanks in advance!

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Ramesh Kumar 7,547 Super User 2026 Season 1 on at

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I would suggest checking with WOOcommerce Dev team as they should have something in place for Cash receipts/ledger

https://community.dynamics.com/forums/thread/details/?threadid=70597968-9c33-40fa-9b60-ec273da7638e&utm

Thanks

Ramesh

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Jeffrey Bulanadi 9,112 Super User 2026 Season 1 on at

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Hi,

BC doesn’t allow you to directly mark a posted sales invoice as “Paid” via the standard API. The invoice status is determined by ledger application, not a field toggle. But there’s a clean workaround using the Customer Payment API and a custom journal posting routine.

Here’s how to approach it:

Use the Customer Payment API to create a payment entry for the invoice. This simulates a cash receipt journal line and links the payment to the posted invoice.

To actually apply the payment and close the invoice, you’ll need to post the journal entry. Unfortunately, BC doesn’t expose a direct API for posting journals, so you’ll need to:

Create a custom Codeunit that posts the journal line

Expose it via OData or a custom API endpoint

Trigger it from your app once the payment is created

This approach ensures the invoice is marked as paid and the customer ledger reflects the correct balance.

Optional enhancements:

Set a unique Payment Method Code (e.g., WOOCOM) for WooCommerce customers to simplify filtering and reconciliation

Use Power Automate to trigger the journal posting after payment creation if you prefer low-code orchestration

Helpful References:
Customer Payment API – Microsoft Learn
GitHub – Journal Line Posting Codeunit
Invoice Sales – Microsoft Learn
Power Automate Integration – Microsoft Docs

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

Cheers
Jeffrey

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

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To mark invoices as paid when syncing completed orders from WooCommerce via API, you’ll need to post a payment entry separately after invoicing. Business Central doesn't allow direct marking of an invoice as paid through the Sales Invoice API.

Workaround:

Use the "Customer Payment Journal" API to create and post a payment entry for the corresponding invoice.

Match the payment to the invoice using the "Applies-to Doc. No." field to clear the balance.

This simulates the real BC process and ensures the customer ledger stays accurate.

✅ Mark this answer as verified if it helps you.

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JI-22070805-0 27 on at

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@Jeffrey Bulanadi Thank you for you reply,

Just a few questions. I'm struggling to get the Custom API deployed. Is it possible to deploy a customAPI to a production enviroment?

The power automate solution sounds good but it can reconcile without having a custom API?

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