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.
Model's Attribute
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Adds SMS features on quotations and sale orders
Tutorial about how to add SMS functionality to a model
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Tutorial about how to optimize SEO, create metadata dynamically and creating custom social media previews.
Tutorial about how to create and use Javascript files in Odoo
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Tutorial about how to write classes and widgets in Odoo
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