QB Issue Resolution:
A Prepayment or Deposit request is not Half of the actual sale. It’s a completely different Charge item.
Make an Other Charge type item and name it Prepayment. If you are an accrual basis entity, link it to Other Current Liability for Customer Deposits. Otherwise, a cash basis entity just got income, so you link it to Income.
Later, you make the actual sale, using Create invoice, for the same date as the sale. Then, you also list your prepayment item on a customer credit memo/refund transaction. There is no Refund, though. You apply this Credit to their invoice, to show the actual sales balance due is partially paid by the funds they send previously. That credit memo is where you put the prepayment item and the prepayment amount you already got from them.
Resolution for Issue 'How do i add a custom data field to an invoice template?' available: Yes (Solved).
Source: Intuit Community forum.
How do i add a custom data field to an invoice template?: this issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.Support for Actual Sale
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