Manage custom fields and attributes

Discover the different types of custom fields you can use to store contact information in Sender.

Standard vs. Custom Fields

Standard Fields are built-in and available by default:

• Email address
• First name
• Last name

Custom Fields are additional attributes you create based on your needs.

Common Types of Custom Fields

Contact Information

• Phone numbers – Mobile, office, or home numbers
• Address – Street, city, state, postal code
• Country – For location-based targeting
• Time zone – For optimal send times

Professional Details

• Company name – Where the contact works
• Job title – Their position or role
• Industry – Type of business or sector
• Department – Specific team or division

Personal Information

• Birthday – For birthday campaigns and offers
• Anniversary date – Customer or subscription milestones
• Gender – For gender-specific content
• Age or age range – For demographic targeting

Behavioral Data

• Purchase history – What they’ve bought
• Last purchase date – When they last ordered
• Total spent – Customer lifetime value
• Product preferences – Favorite categories or items

Engagement Preferences

• Communication frequency – How often they want to hear from you
• Content interests – Topics they care about
• Language preference – For multilingual campaigns
• Subscription source – Where they signed up

Business-Specific Fields

• Customer ID – Your internal reference number
• Account tier – Free, premium, enterprise, etc.
• Renewal date – For subscription businesses
• Support tickets – Number of support interactions

How to Add Custom Fields

When importing contacts, simply add extra columns to your file with the custom field name as the header:

Choosing the Right Custom Fields

Consider these questions:

• What information will help you segment your audience?
• What details do you need for personalization?
• What data will improve your targeting?
• What attributes align with your business goals?

Best Practices

• Start simple – Begin with a few essential custom fields
• Use consistent naming – Keep field names clear and standardized
• Avoid overcomplicating – Only add fields you’ll actually use
• Plan for scalability – Think about future needs
• Keep data clean – Use consistent formats for similar data types

That’s it!

If you got stuck on a specific task or can’t find a way to execute a particular job, contact our support team via LiveChat or support@sender.net – we’re here to help 24/7.