I am trying to create an automated installation procedure for a complete SharePoint 2016 on prem Site Collection, including Nintex functions.
It is a small C# Console application which uses PnP and CSOM coding to do a full solution provisioning, in different staging environments.
I managed to publish Nintex Workflows, apply Nintex Forms, and even create Workflow constants inside the executable.
Now I am searching for a way to modify the Notification Header for the Mail Message Template (_layouts/15/NintexWorkflow/MessageTemplates.aspx).
I found the Header Information in the dbo.MessageTemplates Table inside the NintexWorkflowDB (with web and side id for reference), but neither the Workflow.asmx service nor the nwadmin tool seem to have any API function to change those.
Is there any way to script that for an automated deployment?
