@Julz22 From the query i am able to understand that you're trying to invoice your customers for the consulting services once a purchase order is received from them.
Ideally you should be entering the information from the customer PO to a sales order and invoice the customer from the sales order but QBO does not have sales orders but depending on your invoicing requirements therecare couple of workarounds.
- If you are looking to full purchase order amount to customer :You can directly create an invoice for full amount using the invoice option.
- If you are looking to partially invoice the customer PO amount : To invoice your customers partial amount of the PO, we can use "Estimate"option In QBO. ( Estimates are kind of similar to Sales orders).
Steps to create an estimate and partially invoice the customer :
1, To create an estimate select new button then estimate under customer section.
2, You can add all the details in PO to the estimate. For adding the customer PO number you can add an custom field to the estimate ( To create custom feild click on the gear icon then under list custom feilds).
3, Once estimate is set up and portion of invoice is due, you select create bill which will show a pop up which will give option to bill a certain % ( can be used if your contracts are Milestone based ) or a fixed amount. You can issue multiple invoices from a single estimate.
4. Please note you will require to enable progress billing feature from settings to partially invoice an estimate ( Snippet attached for progress billing option in settings).
Hope this helps. Do ket me know if this does not meet the requirement.
Pai
Bookkeeper
