---
title: "Troubleshooting leads, contacts & companies"
slug: "troubleshooting-leads-contacts-companies"
description: "Learn how to troubleshoot and resolve the most common issues with leads, contacts, and companies."
updated: 2026-06-11T16:51:29Z
published: 2026-06-11T16:51:29Z
canonical: "support.kommo.com/troubleshooting-leads-contacts-companies"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://support.kommo.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Troubleshooting leads, contacts & companies

> [!NOTE]
> **What you’ll need:**
> 
> - Any Kommo plan (Base, Advanced, Pro, Enterprise, or 14-day trial)
> 
> **Keep in mind:**
> 
> - To import a spreadsheet, make sure it does not exceed 2 MB, contains no more than 10,000 rows, has no empty rows, and includes only one sheet. Only files that meet these requirements can be imported
> - Each Kommo plan includes a limited number of leads, contacts, and companies. You can view the exact limits [here](/v1/docs/plans-limits)

## Data import errors

Spreadsheet fails to import or fields are misaligned. **How to fix:**

- Verify that all required columns are filled and properly formatted.
- Ensure matching field names for automatic linking.
- Use Kommo’s import preview to check field mapping before completing the import.

Learn more about data import and export in Kommo in [this article](/v1/docs/import-data-into-kommo).

## Duplicate leads, contacts, or companies

The same record appears more than once. **How to fix:**

- Avoid importing duplicate data by creating a separate spreadsheet for new records.
- Merge duplicates after import.

Learn how to merge duplicate records in [this article](/v1/docs/set-up-duplicate-control).

## Leads not linked to contacts or companies after import

Leads aren’t automatically linked to the right contact or company. **How to fix:**

- Ensure your spreadsheets have **matching fields** (e.g., company name, contact name).
- During import, map the relevant fields to link records.
- You can also manually link a lead to a contact or company from the lead card.

Find out how to link records during import in [this article](/v1/docs/import-data-into-kommo)

## Related

- [Leads, contacts & companies](/lead-profiles.md)
- [Merge duplicate leads, contacts and companies](/find-and-merge-duplicates.md)
- [Import or export data](/import-data-into-kommo.md)