> ## Documentation Index > Fetch the complete documentation index at: https://docs.upflow.io/llms.txt > Use this file to discover all available pages before exploring further. # Import contacts from custom fields > Convert customer custom fields that store email addresses into real Upflow contacts so they can receive reminders and feed into your collection workflows. When you store contact information in customer fields, it is not imported as contacts by default. However, you can set it up from [your contact settings](https://app.upflow.io/organization/-/settings/contact). This allows you to have a more advanced collection strategy. ## Import contacts from custom fields To import the contacts from **customer** custom fields, add the corresponding fields in the Contact management section of your settings. Don't forget to click **Save** at the bottom, so the synchronization of those contacts begins. ### Import logic Only fields of type **TEXT** are available for import. * If the **value is not** an **email address**, then it is ignored from the import. * If there are multiple email addresses, separated by **commas only** , we import each contact separately. * If several fields have the same email address, then multiple contacts are created. * Those contacts will not have a first name, a last name, or a phone number, as we are unable to retrieve them from the custom fields. **It's not yet possible to add this information**. * When you remove the field from that list, or if the email is removed from the field value, then the corresponding contacts are deleted. ### Identifying the contacts imported from a field You can access the list of contacts imported from a field in your [Contacts list view](https://app.upflow.io/organization/-/contacts). In that view, you can see a column called **Custom Field Origin**. This field is populated when the contact is imported from a customer custom field. The value of the field is the name of the custom field used for the import. ## Using contacts from custom fields in collection From the Recipients picker, you can then select the appropriate contacts that should receive the reminder. Those contacts can also be added to the CC and BCC fields of your reminders. Of course, you are also able to use them when performing a manual action. ## Using multiple contact sources simultaneously You can combine contact sources to build a comprehensive contact list. For example, if you use Salesforce as your main contact source for CRM contacts, you can also import contacts from NetSuite customer custom fields at the same time. This is useful when: * Your CRM (Salesforce) contains your primary business contacts * Your ERP (NetSuite) stores additional billing or AP contacts in customer custom fields * You need both sets of contacts available for your collection workflows The contacts from each source will sync independently, giving you access to all relevant contacts for your collection process. ## Supported integrations This feature is available for all Upflow native integrations including Salesforce and API.