Hi there,@JPS148.

Thanks for joining this thread. I understand you need to change the shipping address for your drop-shipping business. 

As additional insights, the sales forms automatically populate a different address if the Ship To Address isn't matched with your Company Information window. 

Hence, ensure that the Same as company address box isn't checked. Here's how:

1. Select the Settings icon on the top right.
2. Choose Account and Settings.
3. Go to Company settings and then click the Pencil icon on the Address section.
4. Uncheck the Same as company address box.
5. Click Save.

I'll add this video article as your reference on how to update company information in QuickBooks Online: Edit company settings in QuickBooks Online.

For future reference, read through this article to guide you in creating purchase orders and apply it to a transaction: Create purchase orders in QuickBooks Online.

Please don't hesitate to reply here if you have more questions. I'm always here to help. Have a great one!