Build Custom LWC Components

1. Writes the LWC with a custom field it needs, then deploys it to the Account record page through a FlexiPage.
2. Grants field-level security through a permission set so a new field can be written.
3. Builds the Apex controller and test class behind a component, along with the LWC bundle, a FlexiPage and a custom tab.
4. Checks the component in App Builder with live data.
5. Deploys to a sandbox and a production org, runs the production Apex tests, and adds a page layout, reports and a dashboard around the component.
6. Fixes bugs found after deployment, such as a filter issue and a time zone bug.
7. Keeps a component's @api properties stable when changing it, so the page reference still works, then redeploys.

Charting components often use Chart.js. For that kind of work, see Build Dashboard LWC Components.