Let's work together so that you get your phone number removed from the purchase order for your QuickBooks Online (QBO) account, hotdogmaster.

You can customize your standard default template to remove the phone number in your purchase orders. Here are the steps on how to edit it:

1. Go to the Gear icon.
2. Select Custom form style.
3. Open the standard default template
4. Choose Content, and click the form header. 
5. After untick the Phone checkbox, then click Done.

Here, I'm also adding this links below for future reference to learn how to use custom fields for your forms:

• Add custom fields to sales forms and purchase orders
• Filter, search, and sort with custom fields

Stay in touch if you have any questions or concerns about formatting a purchase order. I'm here to help you throughout the process. Wishing you a wonderful day ahead.