The Scenario
It's 4 PM on a Thursday and your SDR team closes its list-building sprint at 5. You have 150 qualified leads in a Google Sheet — columns A through D holding first name, last name, email, and company — and they all need to be inside the "Q3 Outbound" Lemlist campaign before EOD so sequencing can kick off Friday morning.
The bad version:
- Open Lemlist, navigate to the campaign, click "Add leads," choose "Import from CSV," export your sheet as a file, re-upload it, and map each column by hand.
- Realize two rows have blank email fields and the import errors out, then go back to the sheet, fix the gaps, re-export, and start over.
- Finish the import, open the Lemlist lead list to verify, discover that 12 rows duplicated because those emails were already in the campaign from a previous push, and spend 20 minutes manually removing them.
You are supposed to be handing the campaign brief to the copywriter right now, not managing a CSV upload loop that should take 90 seconds.
The Easy Way: One Prompt in SheetXAI
SheetXAI is an AI agent that lives directly inside your Google Sheet. It reads your data and talks to Lemlist on your behalf — no export, no upload UI, no column mapping dialog. Open the SheetXAI sidebar and type a single prompt.
Add each row as a new lead to the Lemlist campaign ID in cell F1, using columns A through D for first name, last name, email, and company — write "added" or the error into Column E
What You Get
- Every row processed against the Lemlist campaign specified in F1.
- Column E populated with "added" for each successful enrollment or the specific API error message for any row that failed.
- Duplicate emails automatically skipped — Lemlist returns an error for existing leads, and SheetXAI logs it in Column E rather than silently dropping the row.
- Your Google Sheet stays open and live throughout — no export step, no re-upload if something goes wrong.
What If the Data Is Not Quite Ready
Some rows are missing a company name
Add each row in this sheet as a lead to the Lemlist campaign in cell F1 — if Column D (company) is blank, use the email domain instead — write "added" or the error into Column E
You only want rows where Column E is empty (first-time push only)
For each row where Column E is blank, add the lead to the Lemlist campaign in cell F1 using columns A through D — write "added" or the error into Column E
The campaign ID changes every quarter and lives in a named range
Add all rows with a non-blank email in Column C to the Lemlist campaign whose ID is in the named range CampaignID — use columns A, B, C, and D for first name, last name, email, and company — log the result in Column E
Full cleanup and enroll in one shot
Check Column C for blank or malformed emails and write "INVALID" into Column E for those rows — then for every remaining row, add the lead to the Lemlist campaign in cell F1 using columns A through D, and overwrite Column E with "added" or the API error
The underlying pattern: ask for the data check and the action in the same prompt. SheetXAI handles both passes inline without you touching the sheet between steps.
Try It
Get the 7-day free trial of SheetXAI and open the Google Sheet where your next outbound list lives, then ask SheetXAI to enroll every row into your Lemlist campaign. Also worth reading: how to export campaign performance stats into a sheet, and the hub overview of all Lemlist workflows.