# Set the Invoice number manually Here are the steps to manually set an invoice number: **Step 1:** Create a new invoice by clicking the plus button and selecting "New Invoice.".

Click on plus button on the top right side

Select 'New Invoice'

**Step 2:** Enter the entity and customer information.

Select the Entity and customer

**Step 3:** Once the invoice is displayed, click on the invoice number box and type in the desired number to manually enter the invoice number.

Enter your invoice number.

**Step 4:** Fill in the invoice details according to your requirements and click "Save Invoice" to save the invoice.

Click on 'save invoice'

By following the above simple steps, you can manually set the invoice number. > If invoice number is already used in an old invoice, it will throw an error.