The mirror column shows a column value from another board through a linked item, allowing you to make changes to multiple boards simultaneously. You can read the mirror column via the API, but you currently cannot filter, update, or clear it. You may see some unexpected and inconsistent results if you try to set up filter rules for mirrored content.

Reading the mirror column

You can query the mirror column using the column_values object that enables you to return column-specific subfields by sending a fragment in your query. Values for the mirror column are of the MirrorValue type.

query {
  items (ids:[1234567890, 9876543210]) {
    column_values {
      ... on MirrorValue {


column Column!The column the value belongs to.
display_value String!The content of the mirrored column, in text format.
id ID!The column's unique identifier.
mirrored_items [MirroredItem!]!The mirrored items.
text StringThe column's long text. This field will always return null.
type ColumnType!The column's type.
value JSONThe column's JSON-formatted raw value.


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