Check a leads and contacts file before Close reads it.
Free for 10 runs a day.
Contacts Close merges
Close groups rows into leads by company. Inside a lead two contacts with one email become one. Their names can differ.
This checker shows each merge and each row Close fails before the import.
Start from the columns Close maps
A phone without a country code takes your default one. Two emails in a cell need a semicolon. A date like 04/08/2024 reads two ways.
The Close template uses the column names from its own sample file.
The Close import template
Close leads and contacts template
16 columns, in the order the template downloads.
| Column | What goes in it | Required |
|---|---|---|
| Company | Text | One of these |
| URL | A web address | |
| Company description | Text | |
| Lead status | One of the options in the CRM | |
| Contact first name | Text | One of these |
| Contact last name | Text | One of these |
| Contact title | Text | |
| Contact email | Email addresses, separated by a semicolon | One of these |
| Contact phone number | Phone numbers, separated by a semicolon | |
| Contact URL | A web address | |
| Address | Text | |
| Address line two | Text | |
| City | Text | |
| State | Text | |
| Zipcode | Text | |
| Country | Text |
Use it from a script or an AI agent
MCP https://dedupe.ly/tools/mcp every free tool in one connector (this one: check_crm_import)
POST https://dedupe.ly/tools/api/import-checker
{ "crm": "close", "csv": "..." }
Docs https://dedupe.ly/tools/api/openapi.json Questions about Close imports
Close takes CSV or Excel files up to 15 MB.
Turn on Group Related Rows and pick a column such as the company name. Rows with the same value become one lead with several contacts.
Put them in one cell separated by a semicolon.
A plus sign and the country code, such as +18334625673. Without it Close uses the default country in your settings.
The status must already exist in Close and match it letter for letter.
Get started for free
20 free trial merges and as much free support as you need to get your duplicates under control.
Laura R
Salesforce User
Running CRM cleanup for clients? See the Partner Program






