CSV import fixer
Identifiers, consent, types, dates, lists and file structure.
IMPORT TROUBLESHOOTING
Fix the error. Understand the rule.
Practical guides grouped by destination platform, connected directly to the matching ReadyRows fixer.
KLAVIYO
Klaviyo import guides
Invalid email format
Spaces, malformed addresses and shifted rows.
Phone number format
Country context and international prefixes.
Boolean format
Two-state values and import-safe formatting.
HUBSPOT
HubSpot import guides
HubSpot import file fixer
Contact identifiers, file limits, headers, phones, dates and checkbox values.
HubSpot phone number format
International format and extensions for contact imports.
SALESFORCE
Salesforce import guides
Salesforce CSV import fixer
Insert, Update and Upsert checks, Data Import Wizard limits, IDs, headers and local cleanup.
Salesforce record ID format
15- vs 18-character IDs and why Update files need a valid record identifier.
MAILCHIMP
Mailchimp import guides
Mailchimp CSV import fixer
Required emails, delimiter cleanup, marketing statuses, birthdays, dates and audience-field mapping.
Mailchimp email format
Required Email Address values, unsupported local-part characters, duplicates and common provider typos.
Birthday & date formats
Why Birthday uses MM/DD and how Date fields differ.