Can I select my own purchase orders number in on line plus?

I'm happy to see you here in the Community, @shop-purchasing.

Yes, you can select your own purchase order number in QuickBooks Online. I'm here to guide you on how to accomplish this goal.

You'll need to turn on the Custom transaction numbers option form your Account and Settings so you can enter your desired digits.

To do that:

1. Click on the Gear icon at the top.
2. Tick on Account and Settings.
3. Refer to the Expense tab.
4. Press on Purchase Order.
5. Put a check-mark on the Custom transaction numbers box.
6. Select on Save.

Once done, you can now create a purchase order and customize its number. Here's a short video clip that goes over this procedure: 

I've also got here some articles that are made handy to give you more insights about managing purchase order transactions in QuickBooks Online:

• Create purchase orders in QuickBooks Online
• Copy an estimate to a purchase order

Know that you can always get back to me here if you have any other concerns. I'll be around for you. Have a good one!