Data Cleaning & Spreadsheets

Common CRM Import Errors (Salesforce, HubSpot) and How to Auto-Fix Them

Marcus Vance
Marcus Vance
Principal RevOps & Data Architect
October 10, 2026 7 min read
TL;DR / Quick Summary

Over 90% of CRM import rejections stem from UTF-8 BOM encoding issues, missing mandatory headers (like Last Name or Email), and malformed phone formats. Olonyn auto-formats CSVs to match HubSpot and Salesforce import schemas.

Top Causes of CRM Import Failures

1. "Invalid Email Address": Caused by trailing spaces or illegal punctuation. 2. "Duplicate Key Found": CRM blocks row because another record matches. 3. "Encoding Not Supported": Non-UTF-8 characters in names break the database parser.

Frequently Asked Questions

Can Olonyn format CSVs specifically for HubSpot or Salesforce?
Yes, Olonyn has preset one-click export templates tailored to standard HubSpot and Salesforce CRM contact schemas.
Marcus Vance
Written by Marcus Vance
Principal RevOps & Data Architect
Former data consultant who automated enterprise ETL pipelines, CSV data normalization, and B2B pipeline intelligence models.
Olonyn

Stop paying $620/mo for 6 tools.

Get verified lead prospecting, automated cold email sequences, CSV cleaning, and AI proposals for just $17/month. Start in 60 seconds.

Clean My CSV in 60 Seconds
36-min full access•No credit card required•Setup in 1 click with Google

Related Playbooks

View All