I'd be glad to help with your question about invoicing, christyllew.

You can create an accounts payable for the second store, and an accounts receivable for the first one. Here's how: 

1. Go to the Accounting menu and select Chart of Accounts.
2. Click New in the upper-right hand corner.
3. Select Accounts Payable in both Account Type and Detail Type fields.
4. Enter a name of the a/p account.
5. Click Save and close.

Follow the same steps on how to create the accounts receivable account. This time, select Accounts Receivable in both Account Type and Detail Type fields.

Then, you can use a journal entry to record the invoice or move balances between two stores. Here's an article about this for more details: Create a Journal Entry in QuickBooks Online.

I would also recommend reaching out to your accountant for further advice on this matter.

Feel free to check these articles just in case you want to add more customization to your sales transactions: 

• How to Add Custom Fields to Sales Forms and Purchase Orders
• Customize Invoices, Estimates, and Sales Receipts in QuickBooks Online

Feel free to reply to me or post more questions if you need anything else. We're always here to help.