You can tag a set of records in the Data Vault with a user-defined value and later retrieve the records based on the tag name. You can also base a retention policy on a tag value. A single record in the Data Vault can be part of more than one tag. A tag can be of date, numeric, or string datatype.
You can define a maximum of four date datatype tags, a maximum of four numeric datatype tags, and one string datatype tag in the Data Vault. You can use a maximum of 4056 characters for the string datatype tag. A single tag can have different tag values for different records. When you tag a record, you specify a value based on the datatype of the tag. You can update the value of a tag and remove the tags.