Here you see payments that have been received
If the information between the bank and 24Sevenoffice is correct on all fields in the table, they will be gray. If something is wrong, the line will be red. To correct the error, simply click in the field that lacks information. In the example picture, the customer and the invoice number are missing. Then just click in the fields and look up the customer and invoice number. Then you can mark the payments and post.
You can now post payments without an invoice number. All you have to do is to select them and select book manually. These appear as bundles in the accounting module.