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How to import leads from a CSV file
Open Add Leads, choose CSV, and the import runs in three steps: upload, map columns, confirm. Each row needs at least an email, a LinkedIn URL or a phone number, and files up to 50MB are accepted.
Published by Sellinger AI. Numbers and settings checked on 19 October 2026 against the fact register. Report an error.
Before you start
- A CSV file with one lead per row and at least an email, a LinkedIn URL or a phone number in each row.
- A campaign ready to receive the leads, so they are contacted once imported.
- Any extra columns you want to keep, such as a custom field, ready to map.
Steps
- 1
Step 1
Open the CSV importer
Click Add Leads in the sidebar, then the CSV tab.
- 2
Step 2
Upload your file
Drag the file in or click to choose it. One lead per row. A file that is only a list of LinkedIn URLs, with no header row, also works.
- 3
Step 3
Map the columns
Match your CSV columns to Sellinger fields. At least one of Email, LinkedIn URL or Phone is required. Extra columns can be mapped to your team's custom fields. The first 5 rows are previewed as they will import.
- 4
Step 4
Review the summary
Check the number of leads, mapped fields and any duplicate rows inside the file. You can switch on Skip automatic relevance check so leads are not auto marked Irrelevant before outreach.
- 5
Step 5
Choose where they go and import
Optionally name the import and the segment, pick the destination, then click Import. The import report lists duplicates and failed rows, and you can retry failed rows.
What happens next
The leads appear in your CRM under the segment you chose, and the agent works them within your daily limits. The import report stays available for the latest runs on the CSV tab.
Good to know
- Files over 50MB are rejected. Split large lists into several files.
- Leads already in your pipeline are skipped as duplicates and counted in the result.
- If a file is not UTF-8 or has garbled characters, Sellinger repairs the encoding so names and LinkedIn URLs import correctly.
- Every lead needs an agent to be contacted. Choosing the destination attaches the leads to the right campaign.
- Names and details in a file should only be those you have a lawful basis to contact. See outreach rules.
Common questions
What is the minimum my file needs?
What happens to duplicates?
Can I see what failed?
Sources and method
Written from the Sellinger app as of 19 October 2026.
Related: Find leads in the contact database, Set up an agent campaign, Agentic CRM, All help articles.
