A generic error occurred whilst creating or updating Salesforce records from Campaign Monitor records. Check all the fields are mapped and are of the correct data type for creating or updating Salesforce leads or contact. In particular check for any validation rules in Salesforce that would prevent the record from being saved. This can include restrictions on picklist values (i.e. the country name coming from Campaign Monitor may not match the Salesforce countries).

To see all maintenance codes please click here.