Common HubSpot CSV Import Rejections We Fix
HubSpot CRM requires strict property standards for contact and company imports. Here is how CleanMyCSV prepares your files:
1. Date Property Rejections (YYYY-MM-DD Enforcement)
HubSpot date properties fail to import if formatted as DD/MM/YYYY or text dates like "Jan 12, 2024". CleanMyCSV detects date columns and standardizes all values into strict ISO 8601 format (YYYY-MM-DD) with locale-aware day/month parsing.
2. Phone Number Normalization for HubSpot Calling
HubSpot's built-in dialer and WhatsApp integration require international E.164 phone formats (e.g., +1 (555) 019-2834 or +33 6 12 34 56 78). Our engine strips invalid extensions, restores dropped initial zeros, and adds proper country codes.
3. Invalid Email Formatting & Duplicates
HubSpot uses email as the primary unique key for contact deduplication. Emails with hidden spaces, accidental double @@ symbols, or uppercase characters cause import conflicts. CleanMyCSV auto-sanitizes, lowercases, and deduplicates all email rows.
4. Corrupted Names & Missing ZIP Code Zeros
Importing leads with scrambled accents (é) or stripped 4-digit ZIP codes (2110) ruins CRM segmentation and personalization tokens. CleanMyCSV converts encodings to UTF-8 BOM and pads postal codes automatically.