--- title: Restart invoice numbering (Reset Invoice ID) description: "The Reset Invoice ID add-on of Ultimate Membership Pro restarts the order counter behind invoice numbers, so the next order starts again from 1 or from a number you choose." url: "https://ultimatemembershippro.com/docs/reset-invoice-id/" updated: "2026-10-19" category: "Pro Add-ons" --- # Restart invoice numbering (Reset Invoice ID) 5 minIntermediateReset Invoice ID add-onUltimate Membership Pro 14.2+ In Ultimate Membership Pro, the Reset Invoice ID add-on restarts the counter that invoice numbers come from, so your next order is numbered from 1 or from a value you choose. You use it after a testing stage, when you have cleared your test orders and want the first real invoice to be number 1. This guide explains how invoice numbers are built, how to reset the counter to 1 or to a custom value, and what to check first. Before you start - The **Reset Invoice ID** add-on is installed and active. It's a Pro add-on, included in the Full Package and Agency plans. See [Install a Pro add-on](https://ultimatemembershippro.com/docs/install-pro-add-ons/). - Your license is active. See [Find and activate your license key](https://ultimatemembershippro.com/docs/where-to-find-your-license-key/). - You know how invoices work: the number printed on an invoice is the order code. See [Send invoices](https://ultimatemembershippro.com/docs/order-invoices/). ## How invoice numbers work Every order gets a code made of a prefix and the order number in six digits, for example `IUMP000004`. That code is the invoice number, and it is also the **Code** column of Payment History. The order number comes from a counter that goes up by one with every new order. This add-on changes where that counter continues from. [![Reset Invoice ID add-on: Payment History table with the Code column: IUMP000006, IUMP000005, IUMP000004, IUMP000003, IUMP000002, IUMP000001, next to the customer, Membership, total amount and date](https://ultimatemembershippro.com/wp-content/uploads/2026/10/ump-ao-reset-invoice-03-codes.png)](https://ultimatemembershippro.com/wp-content/uploads/2026/10/ump-ao-reset-invoice-03-codes.png) Order codes in Payment History: prefix plus the order number. Read this before you reset - **The reset applies only when no orders are stored in Ultimate Membership Pro.** The screen says so itself: to remove existing orders and invoices first, use the **Remove Dummy Data** add-on. See [Clear test data before launch (Remove Dummy Data)](https://ultimatemembershippro.com/docs/remove-dummy-data/), and read its warning too: it deletes data for good. - **The buttons act at once.** Reset and Reset Custom run as soon as you click them, with no confirmation question, and nothing on the screen undoes them. You can only reset again to another number. - The reset doesn't delete or renumber any order or invoice. It changes the number the next new order receives. - Invoice numbers matter for accounting. Reset only before you issue real invoices, for example right before launch. ## Open the add-on and switch it on 1. Go to Ultimate Membership Pro*›*Modules. The card is in the **Payments & Billing** group. 2. Click the **Reset Invoice ID** card. 3. Switch on **Activate/Hold Reset Invoice ID Integration** and click Save Changes. [![Modules screen: the Reset Invoice ID card, highlighted](https://ultimatemembershippro.com/wp-content/uploads/2026/10/ump-ao-reset-invoice-01-card.png)](https://ultimatemembershippro.com/wp-content/uploads/2026/10/ump-ao-reset-invoice-01-card.png) The Reset Invoice ID card in Modules. ## Reset the counter [![Reset Invoice ID screen with the switch on, the Reset button, a number field and the Reset Custom button, numbered 1 to 4](https://ultimatemembershippro.com/wp-content/uploads/2026/10/ump-ao-reset-invoice-02-settings.png)](https://ultimatemembershippro.com/wp-content/uploads/2026/10/ump-ao-reset-invoice-02-settings.png) The switch and the two reset options. 1Activate/Hold Reset Invoice ID Integration Turns the add-on on. Click Save Changes to keep it. Default: **Off** 2Reset Restarts the counter at 1. With no orders stored, your next order gets the code `IUMP000001`. 3Reset Invoice ID at custom value The number the count should start from. It must be 1 or higher. Enter `1000` and the next order gets `IUMP001000`. 4Reset Custom Restarts the counter at the number you typed in the field. Enter a number first. The prefix, IUMP by default, is not touched. To change it, use Invoice Prefix Code under Settings › Payment Settings. See the invoices guide linked above. To check the result, place a test order, or wait for your first real order, and read its **Code** in Payment History. ## Example: a clean start for launch day **Coaching Club**Test orders are cleared, and the first real order gets the first invoice number. **Before** : Test orders removed with Remove Dummy Data (Payments) **Action** : Reset **First real order** : Pro Monthly, $19, code IUMP000001 **Alternative** : Reset Custom with 1000: first real order IUMP001000 ## Learn more about Reset Invoice ID - [Reset Invoice ID add-on page](https://ultimatemembershippro.com/addon/reset-invoice-id/): what it does, at a glance. - [All Pro add-ons for Ultimate Membership Pro](https://ultimatemembershippro.com/pro-addons/). - [Ultimate Membership Pro plans](https://ultimatemembershippro.com/pricing/): Pro add-ons come with the Full Package and Agency plans. - [What an invoice contains (Wikipedia)](https://en.wikipedia.org/wiki/Invoice). ## Troubleshooting Why does my next order keep the number after my last order? The reset is meant for when no orders are stored in Ultimate Membership Pro, as the note on the add-on screen says. Clear the old orders first, for example with the Remove Dummy Data add-on, then reset. Does Reset Invoice ID renumber existing invoices? No. Existing orders keep their codes. The screen states that the action doesn't erase any Ultimate Membership Pro invoice. Can I undo a reset? There is no undo button. Run Reset Custom again with the number you want the count to continue from. How do I change the letters in front of the invoice number? Change Invoice Prefix Code under Settings › Payment Settings. New orders use the new prefix. See [Send invoices](https://ultimatemembershippro.com/docs/order-invoices/). ## What's next [**Send invoices**Set up printable invoices and the prefix.](https://ultimatemembershippro.com/docs/order-invoices/)[**Manage payments and orders**Payment History and order codes.](https://ultimatemembershippro.com/docs/manage-payments-and-orders/)[**Clear test data before launch (Remove Dummy Data)**Delete test orders and other sample data.](https://ultimatemembershippro.com/docs/remove-dummy-data/)[**Export orders to a CSV file (Export Orders To CSV)**Keep a copy of your orders first.](https://ultimatemembershippro.com/docs/export-orders-to-csv/)