A web application turns that informal process into software: one data model, defined roles and permissions, validated input, a history of who changed what, and screens designed for the specific job each person does. It runs in the browser, so there is nothing to install and updates reach everyone at once.
We only build the parts that need building. Where a configured platform such as Odoo ERP or Bitrix24 already covers the requirement, we say so — and the application is scoped around what those products genuinely cannot do.