Here you can use banking system's deposit management system, like multiple banks handle, customers profile and its balance, transaction details and notification you can send also print transaction recepit.
Provides an example module for OWL.
Grocery Store are shops that serve daily needs products and commonly used grocery items
Odoo Development Tutorial
Model's Attribute
Odoo CLI Commands Tutorial
CSV vs XML data file Tutorial
Odoo ORM Fields Development Tutorial
ORM Methods Development Tutorial
Housing Module
Sale Quotation
Tree Planting