Hi,

Please refer to the following links:

1. https://www.youtube.com/watch?v=W2u6rfjNnFU

2. https://www.cybrosys.com/blog/overview-of-customer-statement-in-odoo-18-accounting

Hope it helps.

For Odoo18 follow the below path: 
Customers → Select Customer → Smart Button (Customer Statement)

Find the below screenshot for your reference:


For Odoo17 follow the below path: 
Customers → Select Customer → Smart Button (Partner Ledger)

Find the below screenshot for your reference:


You can also get this from the reporting of accounting module. follow the below path for that
Accounting → Reporting → Partner Reports → Partner Ledger.