Reach the right participants

Use Contacts, segments, topics, and properties to invite the right audience into a study.

Use Contacts when the quality of the audience matters as much as the study design.

Contacts is the participant database for your workspace. It helps you import people, add contacts manually, build segments, define subscription topics, and store custom properties for targeting.

Audience principle

A good study is not only well written. It reaches people who can answer from real experience.

The Lemma Contacts page. — Contacts centralizes participants, imports, segments, topics, and properties.

Common Audience Jobs

Start here

Build a study audience

Use segments when participants should match a role, customer type, property, or topic.

Import a list

Bring contacts from CSV, TSV, spreadsheet files, or another system.

Add one person

Create a contact manually when you only need to add a small number of participants.

Store targeting data

Use properties for role, account type, lifecycle stage, region, or any other segmenting attribute.

Contacts vs participants

A contact is a person stored in your workspace database.

A participant is a person who completes a study session.

The same contact can be invited to multiple studies.

Use Topics for subscription categories participants can opt in or out of. Use Properties for structured attributes you control, such as role, plan, company size, renewal date, or customer tier.

Next step

Read Segments if you already know which audience the study should target.