Multiple reports can be generated for transactions done through your customers or vendors.
Here is the list of reports that you can access from the Reports module in the left sidebar.
Sales by Customer
All the sales transactions done for your customers will be displayed here. This will give you an idea of sales done for a particular time period in your business.
All the money that your customers owe you will be displayed here. This includes their available credits and invoice balances.
All the money that you owe your vendors will be displayed here. This includes your bill balance and excess payments.
Purchases by Vendor
Keep a record of all transactions that you perform with different vendors. This report includes the expenses, bill and journals that you associated to your vendors. However, it does not include any purchase returns or vendor credits associated to the vendors.