Conga Composer can store output documents in Salesforce Content, rather than as attachments under the Notes & Attachments related list. Composer can also retrieve items from Salesforce Content or Salesforce Documents to be included in the merge process.
Set up Salesforce content integration before using custom field settings. For more information, see Set Up the Salesforce Content Integration.
Salesforce Documents that reference a URL rather than a static file are not supported for security reasons.
Parameters
ContentCustomFieldNamesets the name of a custom field to set on a Salesforce content record.