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# Field Mapping

> How to map custom fields from third-party integrations onto Merge Common Model fields. Covers creating target fields, configuring mappings per integration, and accessing mapped data via the API.

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Field Mappings are mappings between third-party Remote Fields and user defined Merge fields. This includes integration-wide and Linked Account specific Field Mappings. Integration-wide Field Mappings apply to all Linked Accounts in your organization for a particular integration. Linked Account level Field Mappings are specific to an end user. [Learn more](/merge-unified/supplemental-data/field-mapping/overview).

> **Info**
>
> Programmatically configuring Field Mappings is only available on our Enterprise plans. View the [Merge Plans](https://www.merge.dev/pricing) to learn more.