Calculated column
A Dataverse column whose value is computed at read time from a formula — real-time but not indexable for filters.
A calculated column in Dataverse is a column whose value is computed at read time from a formula referencing fields on the same record (or one level of related records). Every time the row is queried, the calculation runs. Formulas support arithmetic, simple conditional logic, some date/text functions. Trade-offs: always shows current values (no stale data); no storage cost (not persisted); but can't be queried or sorted efficiently because the value isn't indexed. For aggregations across related records, use rollup columns (which persist) instead. For more expressive formulas using Power Fx, use formula columns. For complex logic, use plug-ins or Power Automate flows that compute and store the value in a regular column.