* ''Entity Integrity'' - every record set must possess a unique identifier for each record. This can be comprised of multiple columns. For example, for contacts, emails must be unique and contain no duplicates.
* ''Referential Integrity'' - every related record set must be linked by their respective unique identifiers. For example, a contact associated to an organization should be indicated by the contact record containing the unique identifier for the organization.
* ''Standard Data Type Formatting'' - standard data types should be formatted appropriately. For example, date values should be formatted to 'YYYY-MM-DD', and date/time values to 'YYYY-MM-DD hh:mm:ss'. Number values should be formatted to decimals '######.####' without currency, comma, or other formattingsymbols.
'''Recommended:'''
'''Constraints:'''
* If providing data in plain text format, please ensure strict formatting is adhered to with the escaping of delimiter characters. For example, a CSV should have all values encapsulated by double quotes and escape any quotes that exist within a value.
'''Example:'''