How to add a column that indicates the supplier of the product/service on the invoice

We want you to have the best experience using the program and have the option to add columns in your invoices, @contabilidad. 

Currently, adding a column in your invoice that indicates the supplier of the product/service is unavailable. Alternatively, you can add your own custom fields on invoices and other sales forms if you are using QuickBooks Online Plus, Advanced, or Essentials.

Here's how can create a new custom field: 

1. Go to the Gear > Account and Settings.
2. Click Sales on the left panel.
3. Press the Sales form content section to see all options.
4. Enter a Name into each dialogue box beneath the heading Custom fields and select whether you want the field to be internal (only displayed in QuickBooks), or public (displayed in QuickBooks and displayed/printed on sales forms).
5. Hit Save and then Done. These fields will now appear on your sales forms.

I'm also adding this article for more information: How to add custom fields to invoices, 

Here's an article you can use as reference that can guide you on how to personalize your invoice: Customize invoices, estimates, and sales receipts in QuickBooks Online.

Please know that you're always welcome to post here anytime you need help. I'm more than happy to work with you.