Set Custom Salesforce Fields In Workflows
Workflows support automatic creation of Salesforce accounts, contacts and lead. We've just added the ability to set custom fields on accounts, contacts and leads created during workflows. This is useful if you want to configure workflow-specific behavior within Salesforce - or if you just want to run Salesforce reports on the objects that were created by specific workflows.
Custom fields can be defined in a Workflow's Salesforce Action.