LeadClose Logo
Back to Docs HubCustomers & SegmentsHow to Import Customers via CSV
(DOCS) CUSTOMERS & SEGMENTS

How to Import Customers via CSV

5 Min Read·Updated 2026·Meta Official API

The customer import tool allows you to add or update many customers at once using a CSV file.

Step 1: Prepare Your CSV File

  1. Download the Template: On the Customers page, click the Import button, then click "Download CSV Template". This gives you a file with the correct headers.
  2. Fill in Your Data: Open the template in a spreadsheet program (like Excel, Google Sheets, or Numbers) and add your customer data.
    • Required Columns: name and phone.
    • Phone Number Format: Must be in international format with the country code (e.g., +14155552671). Do not use spaces, dashes, or parentheses.
    • Tags Column: To add multiple tags to one customer, separate them with a pipe character (|). For example: VIP|Follow Up|New Lead.
  3. Save as CSV: Export your completed spreadsheet as a CSV file.

Step 2: Upload and Map Columns

  1. Upload the File: On the Import modal, drag and drop your CSV file or click to select it.

  2. Map Your Columns: The app will try to automatically match the columns in your file to the fields in LeadClose. Review these mappings. If a column from your CSV wasn't matched correctly, use the dropdown menu to select the correct LeadClose field. You can also choose to "Ignore this column".

    Screenshot showing the Account & Billing page with the “Invite a New Team Member” option highlighted.

  3. Click "Continue to Review".

Step 3: Review and Confirm

  1. Handle Duplicates: Choose what to do if a customer in your file (matched by phone or email) already exists in LeadClose.
    • Skip: Do not import that row and keep the existing customer data as is.
    • Update: Overwrite the existing customer's data with the information from your CSV file.
  2. Add Global Tags: You can add one or more tags to every single customer being imported from this file.
  3. Review Data: The system will show you a preview of valid rows that are ready for import and a list of any invalid rows that will be skipped. Invalid rows often have issues like missing names/phones or incorrectly formatted data.
  4. Start the Import: If everything looks correct, click the "Import X Customers" button.

The import will process in the background. You will receive an in-app notification when it's complete.

(006) LET'S TALK TODAY(2026©)

Ready to turn WhatsApp chats into
closed revenue?

Join hundreds of fast-growing sales & support teams using LeadClose. Start your 14-day free trial today or book a live demo with our specialists.

14-Day Free Trial · No Credit Card Required · Official Meta Partner

Chat with usCall us