Why imports fail halfway
Every platform enforces its own import rules — required columns, header names, file and row limits, date formats — and most tell you about violations only after the import starts, or worse, import the good rows and silently skip the rest. This checker runs the same rules against your file first, so you fix the file once instead of re-running the import three times.
The step this belongs to
Checking the file is the last step of a cleanup loop: export from your platform, clean the data, and re-import it yourself. CleanSmart handles the middle — dedupe, formatting, filling, validation, with every change staged for your review — and hands you an export that's ready for exactly this check. Guides for each platform: HubSpot, Salesforce, Klaviyo, Mailchimp, Shopify.