Authentication Errors
INVALID_LOGIN
Error: Invalid username, password, security token; or user locked out Solutions:- Verify credentials are correct
- Ensure password and token are in separate fields
- Contact admin if account is locked
API_DISABLED_FOR_ORG
Error: API is not enabled for this org or profile Solutions:- Contact admin to enable “API Enabled” permission
- Check if using trial org (may not have API access)
Query Errors
MALFORMED_QUERY
Error: Unexpected token or syntax error Solutions:- Check query for typos
- Verify proper SOQL syntax
- Use examples from SOQL Examples
INVALID_FIELD
Error: No such column ‘FieldName’ on entity Solutions:- Verify field exists in Salesforce
- Use API name, not label
- Check Salesforce Objects Reference
Download Errors
DOWNLOAD_TIMEOUT
Error: Download timeout after X seconds Solutions:- Increase timeout in Settings
- Reduce concurrent downloads
- Check internet connection
FILE_NOT_FOUND
Error: File not found or access denied Solutions:- Verify file exists in Salesforce
- Check you have permission to view the file
- File may have been deleted