# Importing Contacts with Custom Properties **URL:** \ **Category:** CRM\ **Created:** [November 6, 2022, 10:12am UTC](https://community.hubspot.com/t/importing-contacts-with-custom-properties/68670 "2022-11-06T10:12:54Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![LMoody9](https://avatars.discourse-cdn.com/v4/letter/l/85e7bf/32.png) [@LMoody9](https://community.hubspot.com/u/LMoody9)\ **Post date:** [November 6, 2022, 10:12am UTC](https://community.hubspot.com/t/importing-contacts-with-custom-properties/68670/1 "2022-11-06T10:12:54Z")
Hi I am trying to import a list of contacts and some of these contacts are already in my contact list. However, Id like the new upload to add values into custom properties rather than replace them. I.e. Lets say I already have a contact and the property Favorite\_colours is listed as “red” Then I upload another version of the contact which says the Favorite\_colour is blue. I want both Red and Blue to be there under the property. When I do the upload at the moment it just overwrites the Red and Puts Blue. ---
**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:** [November 6, 2022, 11:17am UTC](https://community.hubspot.com/t/importing-contacts-with-custom-properties/68670/2 "2022-11-06T11:17:42Z")
Hi @LMoody9, There is a step by step instruction here for what you’re trying to achieve: [Format import files](https://knowledge.hubspot.com/crm-setup/import-data-to-checkbox-properties) Best regards! ---
**Author:** ![LMoody9](https://avatars.discourse-cdn.com/v4/letter/l/85e7bf/32.png) [@LMoody9](https://community.hubspot.com/u/LMoody9)\ **Post date:** [December 2, 2022, 12:46am UTC](https://community.hubspot.com/t/importing-contacts-with-custom-properties/68670/3 "2022-12-02T00:46:45Z")
Thank you!