# Mailchimp Data Sync

**URL:** <https://community.hubspot.com/t/mailchimp-data-sync/40273>\
**Category:** Data Hub\
**Created:** [July 5, 2021, 2:55pm UTC](https://community.hubspot.com/t/mailchimp-data-sync/40273 "2021-07-05T14:55:30Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![elenapetrov](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/elenapetrov/32/48852_2.png) [@elenapetrov](https://community.hubspot.com/u/elenapetrov)\
**Post date:** [July 5, 2021, 2:55pm UTC](https://community.hubspot.com/t/mailchimp-data-sync/40273/1 "2021-07-05T14:55:30Z")

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Hello,

Do you know what happens with the Mailchimp **fields** when a contact is updated through Hubspot? Is the information lost?

I am on the free plan and I am only able to sync email addresses. But I think I lost the information in the Mailchimp fields when I synced all Hubspot contacts to Mailchimp and chose Hubspot as the default app.

Thank you,

Elena

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**Author:** ![karstenkoehler](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/karstenkoehler/32/68554_2.png) [@karstenkoehler](https://community.hubspot.com/u/karstenkoehler)\
**Post date:** [July 6, 2021, 3:47am UTC](https://community.hubspot.com/t/mailchimp-data-sync/40273/2 "2021-07-06T03:47:22Z")

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Hi @elenapetrov,

When you set up the data sync between HubSpot and Mailchimp, which fields did you choose to sync and which direction for the sync did you choose? The sync settings are explained here: [Choose which records sync](https://knowledge.hubspot.com/integrations/connect-and-use-hubspot-data-sync#choose-which-records-sync)

You can check by clicking on the _Marketplace icon_ in the main navigation bar, then under _Manage_, select _Connected apps_, click the _App_, then _Actions_ \> _Edit sync settings_.

Best regards!

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**Author:** ![elenapetrov](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/elenapetrov/32/48852_2.png) [@elenapetrov](https://community.hubspot.com/u/elenapetrov)\
**Post date:** [July 6, 2021, 6:19am UTC](https://community.hubspot.com/t/mailchimp-data-sync/40273/3 "2021-07-06T06:19:14Z")

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Hi Karsten,

Thank you for taking the time to answer!

I chose two-way sync with Hubspot the default app to “Fix data conflicts”.

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<div class="post-metadata">

**Author:** ![elenapetrov](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/elenapetrov/32/48852_2.png) [@elenapetrov](https://community.hubspot.com/u/elenapetrov)\
**Post date:** [July 14, 2021, 7:54am UTC](https://community.hubspot.com/t/mailchimp-data-sync/40273/4 "2021-07-14T07:54:53Z")

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Hi Karsten,

Do you have an answer for me?

Thank you,

Elena

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**Author:** ![karstenkoehler](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/karstenkoehler/32/68554_2.png) [@karstenkoehler](https://community.hubspot.com/u/karstenkoehler)\
**Post date:** [July 14, 2021, 7:57am UTC](https://community.hubspot.com/t/mailchimp-data-sync/40273/5 "2021-07-14T07:57:38Z")

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Hi @elenapetrov,

With the settings that you chose, I’d be surprised if information was lost. Could you specify what kind of information you think was lost?

Best regards

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<div class="post-metadata">

**Author:** ![elenapetrov](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/elenapetrov/32/48852_2.png) [@elenapetrov](https://community.hubspot.com/u/elenapetrov)\
**Post date:** [July 14, 2021, 7:59am UTC](https://community.hubspot.com/t/mailchimp-data-sync/40273/6 "2021-07-14T07:59:46Z")

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@karstenkoehler I have some custom fields in my Mailchimp database and I might have lost the info on those fields.

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**Author:** ![karstenkoehler](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/karstenkoehler/32/68554_2.png) [@karstenkoehler](https://community.hubspot.com/u/karstenkoehler)\
**Post date:** [July 14, 2021, 8:03am UTC](https://community.hubspot.com/t/mailchimp-data-sync/40273/7 "2021-07-14T08:03:01Z")

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Hi @elenapetrov,

Can you provide more details? What were those properties, how did you map them to the HubSpot properties? Are they now empty or do they have a value from HubSpot in them?

Best regards

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<div class="post-metadata">

**Author:** ![elenapetrov](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/elenapetrov/32/48852_2.png) [@elenapetrov](https://community.hubspot.com/u/elenapetrov)\
**Post date:** [July 14, 2021, 8:12am UTC](https://community.hubspot.com/t/mailchimp-data-sync/40273/8 "2021-07-14T08:12:32Z")

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Hi @karstenkoehler,

I didn’t map them in any way to Hubspot because I am on the free plan and I am only able to map email addresses.

Also, those properties do not exist in Hubspot.

I can’t figure out if I lost the data in Mailchimp or not because only a part of the list has no data. I don’t know if it didn’t have data or if it lost it.

This is why I am trying to find out what typically happens in a situation like this.

Thank you,

Elena
