Negative invoices are generated for credit or negative charges.

No negative invoices are generated; credit memos are generated instead.

You can create Invoice Item Adjustment to correct overcharging and undercharging.

You can create standalone credit memos and debit memos from invoices.

You can amend a subscription with a one-time charge for ad hoc credits or charges.

You can create standalone credit memos and debit memos from product rate plan charges.

You can create invoice item adjustments to write off an invoice.

You can directly write off an invoice with high performance.

No way is available to re-bill to correct a previous invoice mistake.

You can directly reverse an invoice to correct a previous invoice mistake.

Credit balance from overpayments or negative invoices cannot trace the source of credits.

Credit memos and unapplied payments provide precise traceability to the corresponding product rate plan charges or original payments.

No way is available to record a payment without assigning it to an account or an invoice.

You can create a payment as Unassigned. The payment can be processed, recorded, and accounted for initially. Then, it can be assigned to an account and applied later.

No way is available to settle specific invoice items.

You can apply payments or credit memos to specific invoice items.