**What**
- GET /admin/customers/:id/addresses
- POST /admin/customers/:id/addresses
- POST /admin/customers/:id/addresses/:address_id
- DELETE /admin/customers/:id/addresses/:address_id
**What**
```
POST /admin/customer-groups
POST /admin/customer-groups/:id
GET /admin/customer-groups/:id
DELETE /admin/customer-groups/:id
```
- Workflows
what:
- adds create endpoint for promotions including workflows and endpoint (RESOLVES CORE-1678)
- adds update endpoint for promotions including workflows and endpoint (RESOLVES CORE-1679)
- adds create endpoint for campaigns including workflows and endpoint (RESOLVES CORE-1684)
- adds update endpoint for campaigns including workflows and endpoint (RESOLVES CORE-1685)