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Marblism Stan CSV Import: Check Leads in 15 Minutes

Download the clean template, check which rows meet Stan's documented import rule and fix expected skips before you upload the list.

By Jeff Niegsch · Service-business owner · Published July 26, 2026
Short answer: Make a copy of five leads you are allowed to contact. Give each row an email, a LinkedIn URL, or both a name and company. Run the copy through the browser-only checker below, correct only facts you can verify, then upload it from Stan's Leads tab and map the columns.

A small lead-file problem becomes expensive when it is found after a campaign is built. Blank identifiers create skipped rows, missing names can trigger enrichment, and unclear columns make the import harder to review. A five-row test catches the structure first without putting an entire customer export at risk.

This is the file-preparation step. Use the Stan sales setup guide for the larger workflow, and keep outreach paused until you complete the separate Stan campaign preview challenge.

What Marblism officially supports

Marblism's current instructions say to open the Leads tab, select Import Leads, upload a CSV and map these columns: name, email, company, job title, location, LinkedIn URL and website. The same guide says you can instead drop a CSV or Excel file into Stan's chat.

The key rule is short: A row is usable if it has an email, a LinkedIn URL, or a name + company. Marblism says rows without one of those three identifier paths are skipped and the import reports how many.

Row hasExpected resultOwner check
EmailMeets the documented usable-row rule.Confirm the address belongs to the intended person.
LinkedIn URLMeets the documented usable-row rule.Open it and confirm the profile and company.
Name + companyMeets the documented usable-row rule.Use the full, current company name.
None of the aboveStan says the row is skipped.Fix it with verified data or leave it out.

Marblism also says an imported row that already contains both a name and email skips enrichment. A usable row missing either may require enrichment to find the email, which can draw from Stan's monthly enrichment quota.

Free Stan CSV readiness checker

Use the exact seven-column template or paste CSV text with common versions of those headers. The checker counts rows that meet Marblism's documented identifier rule and flags the row numbers it expects Stan to skip.

Privacy: the pasted text is read in this browser page and is not submitted by the checker. Use a copied test file, keep the original export unchanged, and remove fields Stan does not need.

Paste CSV text to see ready rows, expected skips and rows that may use enrichment.

Prepare a Marblism Stan CSV import step by step

  1. Start with a five-row copy. Use contacts your business is allowed to contact. Do not experiment on the original CRM or customer export.
  2. Keep only useful columns. Use Marblism's seven documented fields: name, email, company, job title, location, LinkedIn URL and website.
  3. Paste the copy into the checker. A ready row needs an email, LinkedIn URL, or name plus company.
  4. Fix expected skips with known facts. Add a verified identifier. Do not guess an address, profile, title or company just to make the count turn green.
  5. Review likely enrichment rows. If you already know the person's correct name and email, include both; Marblism says that combination skips enrichment.
  6. Import from Stan's Leads tab. Select Import Leads, upload the clean copy and map each column to the matching field.
  7. Compare the result. Confirm Stan's imported and skipped counts match your expectation, then inspect the import tag before adding any lead to a campaign.

If the count differs, stop and inspect the exact skipped rows. A clean five-row test is easier to diagnose than a large import with mixed headers, empty records and stale contact data.

Honest limitation: this checker only reads CSV structure and nonblank identifiers. It cannot verify email deliverability, profile ownership, consent, legal outreach requirements, enrichment accuracy, duplicates already inside Marblism or whether the import succeeds. Its 5,000-row safety limit is a checker limit, not a documented Marblism limit. Stan's import screen and your source records remain the authority.
The Marblism Challenge

Clean and test five Stan leads in 15 minutes

Action: Put five permitted contacts into a copied CSV, run the file through the checker, fix verified identifiers and complete one test import without adding the leads to a campaign.

Win conditions: all five rows meet one documented identifier path, every column is mapped to the intended Stan field, and Stan's imported/skipped result matches your expected count.

Score: 0 / 3 — Start with a five-row copy.

Score 3/3, then try the next Marblism Challenge: preview Stan's targeting and messages before sending.

Why the five-row test is worth doing

Once the five-row copy imports cleanly, repeat the same structure with the next small batch. More rows are only useful when the source, mapping and permission are still clear.

Try the workflow with Marblism

Marblism is normally $44/month. Jeff's 25%-off partner discount makes it $33/month. Confirm the discount at checkout. Marblism offers a 7-day money-back guarantee.

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Affiliate disclosure: Jeff may earn a commission if you buy through this link, at no added cost to you.

Sources checked

Official Marblism sources checked July 26, 2026. Features, quotas, pricing and partner terms can change, so verify current settings inside your account and confirm the discount at checkout.