MC4SF_BOOLEAN_PICKLIST_MAPPING

This error occurs when the system cannot find a compatible mapping between a Salesforce boolean field value (true/false) and the available picklist options in a Mailchimp merge field. The system attempts to automatically map boolean values to common picklist formats like "Yes/No", "True/False", "On/Off", "Enabled/Disabled", "Active/Inactive", or "1/0", but none of these standard mappings match the actual picklist values configured in your Mailchimp merge field. To resolve this, review your Mailchimp merge field configuration and either update the picklist options to use standard boolean-compatible values (like "Yes" and "No"), or consider using a different field type for the mapping. The system will fall back to using "Yes/No" mapping when this error occurs, but the data may not sync correctly until the mapping is properly configured.