Issue
When sending a DocGen Package to AssureSign the below error occurs:
Error Code
To use Nintex AssureSign with Application__c, your Salesforce Admin must configure ASL. (DataInvalid)
An error occurred tyring to insert an AssureSign envelope Salesforce record: AslFieldApiName
Resolution
Navigate to the AssureSign Lightning Application and finish the Setup and Configuration from the following documentation:
1. Install And Configuration Of AssureSign For Salesforce Lightning
2. Adding the AssureSign for Salesforce Lightning Interface to Custom Objects