Why has my customer database suddenly increased?

If you’ve noticed a sudden increase in customer profiles in Marsello, spam or bot signups may be inflating your database. This guide walks you through how to identify suspicious customer records and bulk remove them from your Marsello account.

Are spam or bot signups inflating your customer database?

Spam or bot signups can cause a sudden increase in customer profiles in Marsello.

How to check for spam customers

Step 1: Export your customer database

1. In your Marsello admin, go to Customers > All Customers.
2. Find the Export / down-arrow icon next to the sort-by feature.
3. Click the icon to export your customer database as a CSV file.

Step 2: Search for unusual customer names

1. Open the exported CSV file in your spreadsheet software.
2. Sort the file by Customer Name.
3. Look for suspicious or generic names, such as:
   • John Doe
   • Anonymous
   • Random strings of characters
   • Incomplete names
4. Copy suspicious records into a new CSV file.
5. Save the new file as spam-customers-to-remove.csv.

Step 3: Search for suspicious email addresses

1. Return to your original customer database export file.
2. Sort the file by Email Address.
3. Look for email patterns, such as:
   • Random letters and numbers
   • Nonsensical usernames
   • Bot-like formatting
   • Temporary email domains

   Example suspicious email: xy12ab34@domain.com

4. Copy suspicious records into your spam-customers-to-remove.csv file.

How to fix: bulk remove spam customers

Bulk remove customers by email is available on all Marsello plans.

Step 4: Bulk remove spam customers

1. In your Marsello admin, go to Customers > All Customers.
2. Open the Update Customer List dropdown menu.
3. Select Bulk remove customers by email.
4. Paste the customer email addresses into the popup window.
5. Check that:
   • One email address appears per line
   • No extra spaces are included
6. Click Remove Customers.
7. Review the list carefully.
8. Click Yes, Remove Customers to confirm.

What happens after you remove customers from Marsello?

Removed customers will:

• No longer count toward your active customer database
• No longer receive marketing campaigns
• No longer participate in your loyalty program
• No longer automatically sync back into Marsello after future purchases
• No longer count toward your Marsello billing
• Can be added back to your program manually if you removed a real customer by mistake

Still not working?

Contact support using How to contact Marsello support.