I cannot find a way to add customers PO# to the invoice, there is not a field for this info, this info is how the projects i make are recognized by customer.

QuickBooks has a built-in capability that lets you create a custom field. This feature allows you to manually input PO Numbers while you're in the process of creating invoices, engravingchick.

I'd be happy to guide you through the process. Here's how you can set this up:

1. Go to the + New button and select Invoice.
2. Click Manage in the upper-right hand corner of the invoice and choose Customization.
3. Look for Custom fields and click Manage.
4. Click Add field, then choose PO Number in the Suggestion for you section. You can also manually type in the name of the field if you can't see it in the suggestion area.
5. Select Transaction under the Select category section.
6. Check all sales transactions that will be using the customized field, then make sure to enable the Print on form option by sliding it to the right.
7. Click Save.

Check out this article for more in-depth information on creating and utilizing custom fields: Add Custom Fields To Sales Forms And Purchase Orders In QuickBooks Online.

If you're looking to enhance your invoice creation process, these additional resources can also be helpful:

• Add Project Estimate Summaries To A Progress Invoice In QuickBooks Online
• Add, Customize, Or Remove Logos On Sales Forms

If you have any further questions about invoice creation or project management in QuickBooks Online, please feel free to return to this forum. Our team is committed to providing prompt and thorough assistance to address your concerns.