We have several DocuSign Accounts in our organization. We are planning to build Tableau dashboard that gets usage/billing data from all accounts. DocuSign is using OAuth Token for authentication. Not sure how to authenticate in Tableau. Could you help us with this?
https://developers.docusign.com/esign-rest-api/reference/Billing/Invoices/get
You'll need to create a Web Data Connector that retrieves the data from DocuSign and puts it into a tabular format for Tableau to use.
Tableau can only connect to SQL datasources, datasources with an ODBC connector, or web data connectors that translate non-SQL sources (such as DocuSign's REST API) into a tabular form.