# How can we help?

## [Contact data and management](https://support.cordial.com/hc/en-us/sections/115001585408-Contact-data-and-management)

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[Import contacts: prerequisites](https://support.cordial.com/hc/en-us/articles/8122275111693-Import-contacts-prerequisites)

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[Import contacts](https://support.cordial.com/hc/en-us/articles/115005530828-Import-contacts)

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[Set and update contact subscribe status](https://support.cordial.com/hc/en-us/articles/216876478-Set-and-update-contact-subscribe-status)

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[Import a list of unsubscribed contacts](https://support.cordial.com/hc/en-us/articles/220318527-Import-a-list-of-unsubscribed-contacts)

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[Contact management](https://support.cordial.com/hc/en-us/articles/115005530808-Contact-management)

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[Contact Profile](https://support.cordial.com/hc/en-us/articles/360057876832-Contact-Profile)

## [Data collections](https://support.cordial.com/hc/en-us/sections/115001575047-Data-collections)

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[Cordial data platform](https://support.cordial.com/hc/en-us/articles/115005361107-Cordial-data-platform)

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[The Cordial difference](https://support.cordial.com/hc/en-us/articles/26567083301517-The-Cordial-difference)

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[Contact attributes](https://support.cordial.com/hc/en-us/articles/115005528368-Contact-attributes)

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[Lists](https://support.cordial.com/hc/en-us/articles/115005528428-Lists)

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[Import file size limitations 100MB](https://support.cordial.com/hc/en-us/articles/218572567-Import-file-size-limitations-100MB)

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[Cart items](https://support.cordial.com/hc/en-us/articles/360002291932-Cart-items)

## [Data Jobs and transformations](https://support.cordial.com/hc/en-us/sections/360010311491-Data-Jobs-and-transformations)

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[Data Jobs and Transformations overview](https://support.cordial.com/hc/en-us/articles/14659667437453-Data-Jobs-and-Transformations-overview)

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[Import contacts via Data Job](https://support.cordial.com/hc/en-us/articles/10546029940109-Import-contacts-via-Data-Job)

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[Export contacts via Data Job](https://support.cordial.com/hc/en-us/articles/14925015752589-Export-contacts-via-Data-Job)

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[Social Audiences Automations](https://support.cordial.com/hc/en-us/articles/360032945111-Social-Audiences-Automations)

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[Smart Code Assist](https://support.cordial.com/hc/en-us/articles/360059635872-Smart-Code-Assist)

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[Custom Google list unsubscribe process](https://support.cordial.com/hc/en-us/articles/360055189551-Custom-Google-list-unsubscribe-process)

## [Audience building and segmentation](https://support.cordial.com/hc/en-us/sections/360000599731-Audience-building-and-segmentation)

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[Linked audiences](https://support.cordial.com/hc/en-us/articles/27716113699341-Linked-audiences)

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[Segmentation](https://support.cordial.com/hc/en-us/articles/360002049231-Segmentation)

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[Audience Builder](https://support.cordial.com/hc/en-us/articles/115005532168-Audience-Builder)

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[Audience rule definitions](https://support.cordial.com/hc/en-us/articles/7534448256397-Audience-rule-definitions)

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[Retarget an audience segment](https://support.cordial.com/hc/en-us/articles/360030956612-Retarget-an-audience-segment)