---
title: Where can I find External Document No. on an open sales invoice?
description: You want to check the external document reference on a sales invoice before posting. Follow the POS365 Manager navigation in Business Central.
---

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# Where can I find External Document No. on an open sales invoice?

## You want to check the external document reference on a sales invoice before posting.

**Note:** This FAQ uses the POS365 Manager role and English page names. If your screen looks different, follow [Access the POS365 UI (user interface) Manager role in Business Central](https://help.posone365.com/pos365/access-the-pos365-user-interface-in-business-central?hsLang=en). Changing the language to English is optional, but makes it easier to follow this FAQ.

**Answer:**

1. On the **Business Central home page (POS365 UI)**, find **POS365 Navigation**. Under **Transactions**, select **Sales Invoices**.
2. Open the relevant invoice and expand **General** near the top.
3. Select **Show more** in the upper-right corner of that section if needed.
4. Find **External Document No.** on the right-hand side, below **Due Date**.

This is the field on the sales invoice, not a field on a general journal payment line.

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