To access the Invoices document list, go to Sales > Sales Documents > Invoices.
The Invoices list
The list of invoices includes all the invoices available in the system. If you don't see a specific document, rearrange the list by date or document number or use the Search field to locate the document by a string in its description, company name, or contract number. You can change the list display settings to suit your particular needs. To learn more about the list display settings, see Working with the item list.
Invoices can be based on documents of the following types: Lead, Quotation, Customer Order, or Proforma Invoice from the Sales module.
The following types of invoices are available in the system (some of the transaction types are available if the appropriate features are turned on):
...
To edit an existing document, double-click the line with the document in the Invoices list. You can also select the line, right-click it, and select Edit or click More actions > Edit on the toolbar. If you need to print the selected document, send it by email, or perform other operations, refer to List Toolbar.