Invoice created
The billing record starts in the same product as the books.
Invoices + messages
Invoice replies inside your bookkeeping records make the payment trail easier to trust later.
Most solo operators send the invoice in one system and then chase the communication somewhere else. Months later, that reply thread matters, but it is no longer attached to the record that needs explaining.
InEx Ledger keeps invoice replies inside the account so the conversation can stay tied to the invoice history.
Keep the reply where the bookkeeping needs it
Client reply received
The communication comes back into the account instead of living in a separate email trail.
Conversation tied to the record
The invoice and the follow-up stay easier to understand if payment or a dispute needs review later.
Keep the invoice and the reply in the same story.
That one change removes a surprising amount of bookkeeping friction.