BlogMay 9, 2026Billing tips

Five billing traps that quietly erode margin

Shadow spreadsheets, orphaned credits, and weak approval paths create revenue leakage—especially when invoices, stock movements, and shop data live in separate tools.

The first trap is issuing from a system of record that finance does not trust, then “fixing” numbers in parallel sheets. You get double sends, Version 3 PDFs in inboxes, and nobody agrees on the balance at month end.

Second: credit notes and adjustments without a clear link to the original document. Regulators and auditors expect a chain you can follow; customers expect a statement that matches what they were told to pay.

Third through fifth: no separation of duties on bank details, tax codes chosen from memory, and payment status updated only when someone remembers. The antidote is one tenant-wide flow from document issue to export—with roles, locked references, and webhooks or manual capture that always land on the same invoice row.