TL;DROne part of a fee that the contract lets the customer pay later, on a stated date or invoice.
A contract might say 50% of the implementation fee is due on signature and 50% on go-live, or on the third monthly invoice. Each part is a deferred instalment with its own due date.
Sonic records the timing the contract states and stamps a missing date from the payment terms. It never invents a schedule phase just to carry an instalment.
Where it happens in Sonic
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See it on your contracts
A walkthrough on the agreements and files you actually bill from — not a slide deck.