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"System.Customer.UserImportCsvDelimiter" – Optional attribute. Used to override the default CSV delimiter (',') with another char. (e.g. '|' for CCL. String used as Regex). Because attributes are stored as a string, only put the character itself in the Value, not the single quotes.
"System.Customer.PreserveOrgLoginIdOnDelete" - Optional attribute. IMPORTANT: Because the check on deleted users requires verifying the OrgLoginId or Email (which are nulled out by default on delete) you need to set this attribute to 'true' in order to bring back deleted users. Otherwise a new user will be created.
"System.Customer.UserImportProfileTranslations" – Optional attribute. Stores the mapping for user Profile Indexes to be used by the user importer. If this is not set, assume default names for DB keys (see below for defaults key names). The key/value pairs need to adhere to strict naming (Attribute keys are string constants, if they don't match, importer will fail). For example: First and Last Name cannot be in the same column. All keys must follow db table column names. The order does not matter, as the indexing is built dynamically.
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