Hi @p_berlia ,

Yes - this is possible using a couple of methods. 

1 - Using our loopmessage class in Apex code

https://help.nintex.com/en-US/docgensf/Apex/loopMessage.htm#loopMess2

2 - Use the RunDocGen class in Salesforce process builder or flow

https://help.nintex.com/en-US/docgensf/DocGenPackage/SalesforceFlowProcessBuilder.htm

Using the Apex class in process builder or flow is declarative and relatively simple to setup. It would be the recommended approach unless you would rather build the request into code. 

You do need to have automated requests as part of your Drawloop licensing, so you will need to get into touch with your Nintex representative to ensure you have the feature available to use the options above.

Best,

Ray C