Terms Filter for Text
The Terms Filter (Aggregator) is used to aggregate terms from strings (e.g., Text, Checkbox). It uses text as a base (e.g., titles), meaning it does not aggregate similar text but only exact matches. For example, List Item "Joe Berrymore" may be present multiple times (e.g., Joe Berrymore, Jo Berrymore, Joe Berymore). We strongly recommend using the refId (with the Terms Relation Filter) as the source when building Filters for Tagbox values to avoid confusing or incorrect results.

For a multi-value Tagbox (or multi-value Relationship, multi-value Fieldset), it is used in combination with the NestedAggregator.