Standardize data format for standard and custom fields in Sell

Unable to force standardization across data in Sell - We want to use Sell as source of truth for customer data but there is no field validation/consistency (e.g. phone numbers, postal codes, etc.) for both system and custom fields.  We would like to be able to define a specific format or digit length for fields

Example Fields: 10-digit phone number (###-###-####), Canadian Postal Codes (A#A#A#), 10-digit account number (custom field).