Parameter Description: DocuSignCustomFieldValue sets the value of the corresponding custom field.
You can use a total of 12 DocuSign custom fields and values with the format DocuSignCustomFieldValue, DocuSignCustomFieldValue1, DocuSignCustomFieldValue2, ... DocuSignCustomFieldValue10, DocuSignCustomFieldValue11.
This parameter updates a field value on the DocuSign Envelope record in Salesforce. It does not update any fields in the Docusign for Salesforce UI.
Example:
&DocuSignCustomField=Account__c or &DocuSignCustomFieldValue=001ABCEDFGHIJL