The second entry is the problem
A standalone ledger app sits beside your billing rather than inside it. You write the bill for the customer and then type the amount into the app. That works while you are careful and fails on the day the counter is busy — and once the two records differ, neither can be trusted without checking the other. Here the bill is the ledger entry. There is no second action, so there is nothing to skip and nothing to reconcile.
A balance is not a record
What ends a credit argument is not the figure but the detail behind it: which bill, on what date, what material, delivered to which site, in which vehicle, received by whom. A ledger entry generated from an invoice and a delivery carries all of that. A number typed into an app carries none of it, which is exactly the situation where a contractor says a load never arrived and you have an amount with nothing behind it.
When you should not switch
If your business genuinely does not raise bills — a tea stall, a small provision counter, a service where the transaction is just an amount — then a ledger app is the right size of tool and this would be more than you need. Be honest about which you are. The move is worth it when you are also producing invoices, holding stock and sending material out.
Moving off a ledger app
There is almost nothing to export, which makes this the quickest switch on this page. You need one figure per party: what they owe you today. Take that from the app, check it against your own sense of each account, and enter it as an opening balance. From that moment the ledger continues on its own from your billing. The real work is not migration, it is the change in habit — you now record the sale by raising the bill rather than by typing an amount afterwards. Most people find that easier, not harder, because it is one action instead of two. Do it for every credit party on day one rather than moving them across gradually, otherwise you are running two ledgers and neither is complete.