Hi, 

  I have the same issue. We have a new tenant in GCCH and we cannot add K2 app in the App Catalog. Do you have a solution for this problem?

Thank you.

Hi, I've already given up. I think this has no other solution than to deploy a new K2 app based on SPFx, and K2 5.8 to the new tenant.
I don't think anyone will budge with Microsoft to allow anything else in this. Here we have no choice but to wait for Nintex to release some tool that somehow allows to convert the solution associated with the legacy app to the new SPFx app.

Is this perhaps the tool that you are looking for?

https://help.nintex.com/en-US/nintexautomation/userguide/current/Content/K2-for-SharePoint/MigrationTool.htm

I don’t need to use K2 for SharePoint from SharePoint Online.

I use K2 Five On-Prem. We just want to be able to add documents to SharePoint Online site collection.

Do I have to do the migration?

Thank you.

Hello,
If you are using K2 Five On-Prem and want to connect SharePoint Online; you will want to be on the latest K2 5.8 version and use the SPFX app model to integrate with SharePoint Online; as Microsoft is deprecating the legacy SharePoint apps add-ins model.  This will surface the SharePoint Online SmartObjects that you can use to upload document to SharePoint Online.

You will want to “Install the Nintex Automation for SharePoint App” from below (not the legacy one):

https://help.nintex.com/en-US/nintexautomation/icg/current/Content/Install/AppDeployment.htm

Is this available in GCCH?

Thank you.

Hello,

I am not familiar with GCCH.  But the SPFX is a file “nintex-automation.sppkg” that you would download locally to your machine.  Then you would upload this file to the Apps store for your SharePoint Online tenant.  The activation of the app to the desired SharePoint Online site collection would be done through the K2 Management site as long as there is connectivity from the K2 server to the SharePoint Online sites.

Thank you.