# Implementation summary — AN-63

**Design:** Account Customer Tier Classification

## Files written
- `force-app/main/default/objects/Account/fields/Customer_Tier__c.field-meta.xml`
- `force-app/main/default/objects/Account/validationRules/Prevent_Manual_Customer_Tier_Edit.validationRule-meta.xml`
- `force-app/main/default/flows/Account_Customer_Tier_Assignment.flow-meta.xml`
- `force-app/main/default/lwc/accountRecordPage/accountRecordPage.html`
- `force-app/main/default/lwc/accountRecordPage/accountRecordPage.js`
- `force-app/main/default/lwc/accountRecordPage/accountRecordPage.js-meta.xml`
- `force-app/main/default/permissionsets/Account_Customer_Tier_Visibility.permissionset-meta.xml`

## Acceptance criteria

- Update logic to classify Accounts into Customer Tiers based on the provided Annual Revenue table.
- Classification occurs automatically when an Account is created or Annual Revenue changes.
- Users cannot manually edit the Customer Tier field.
- Customer Tier field is visible on the Account Lightning Record Page.
- Existing Accounts can be backfilled with the correct tier.