--- title: "RelatedDataFilter" slug: "relateddatafilter" updated: 2024-07-02T14:13:25Z published: 2024-07-02T14:13:25Z canonical: "docs.mapp.com/relateddatafilter" --- > ## Documentation Index > Fetch the complete documentation index at: https://docs.mapp.com/llms.txt > Use this file to discover all available pages before exploring further. # RelatedDataFilter Available in version v4+ The object for filtering related data. If provided, only records with matching values for all columns and value pairs are selected. | **Name** | **Type** | **Description** | **Constraints** | | --- | --- | --- | --- | | datasetName | String | Name of the related data set. All related data records reside within a data set identified by a unique name. | required | | key | String | Key defining which record(s) to select from the data set. | required | | filter | Attribute | An optional list of name, value pair | required |