Goog day, I would like to set my starting invoice numbers for customers, how do i do that ?

Let me help you set the number preference, @accounts170. 

You can do it by turning-on this feature from your account and settings. Here are the steps:

1. Go to the Gear icon and then click on the Account and Settings.
2. Select the Sales tab and click the Sales form content.
3. Check the box next to Custom transaction numbers.
4. Hit the Save button and then Done.

From here, you can now open an invoice or any sales form, and in the Invoice no. field, enter the custom number or letter sequence you want to use for your forms.

Please take note that the sequence you set here applies to all sales forms.

Check this article for more information: How to change the invoice number on sales forms.

I’m always here if you still have questions or follow-up about your account by leaving a comment below. Take care and have a wonderful day!