Unable to create new workflow items in ArcGIS Workflow Manager

Description

When attempting to create a new workflow item in ArcGIS Workflow Manager, the process fails and returns the following error message:

Error: 
Unable to create new Workflow item

 

In other circumstances, the process fails and returns the following error message:

Error: 
ERROR 999999: Something unexpected caused the tool to fail. Contact Esri Technical Support (http://esriurl.com/support) to Report a Bug, and refer to the error help for potential solutions or workarounds. Invalid url: blocked host. Failed to execute (Publish Portal Service). Failed.

Cause

• Internet Protocol Version 6 (TCP/IPv6) is disabled on the ArcGIS Server machine. This issue arises due to Microsoft Windows linking the internal server hostname to the Internet Protocol version 6 (IPv6) localhost address (::1) by default when IPv6 is disabled.
• The Portal for ArcGIS certificate does not match the certificate in ArcGIS Server (Federated environment). A mismatch certificate causes the client application to be unable to confirm the identity of the web server while ArcGIS Workflow Manager attempts to create a new workflow item.
• The new workflow item is created using a baseline deployment. This is a limitation by design. When creating a new workflow item, an additional cloud connection is required.

Solution or Workaround

Depending on the circumstances, the workarounds described below are applicable.

Enable Internet Protocol Version 6 (TCP/IPv6)

To enable Internet Protocol Version 6 (TCP/IPv6) on the ArcGIS Server machine and for further information, refer to Microsoft: Change TCP/IP settings.

Note:
If enabling IPv6 is not a viable option, modify the registry key to configure the IPv6 functionality. Refer to the solution below.

Modify the registry key to configure IPv6 functionality

Apply the following steps below to set the IPv6 functionality to prefer IPv4 over IPv6.

1. In the Windows search bar, search for Command Prompt.
2. Right-click Command Prompt and select Run as administrator.
3. In the Administrator: Command Prompt window, run the following command to set the IPv6 functionality to prefer IPv4 over IPv6.
4. Restart the ArcGIS Server service.
   1. Right-click the taskbar, and click Task Manager to open Windows Task Manager.
   2. On the Services tab, right-click ArcGIS Server, and click Start.

Import the root CA certificate to Portal for ArcGIS

For mismatch certificate issues, apply the following steps to import the root CA certificate.

1. Sign in to the Portal Administrator Directory as an organization administrator using the following URL:

https://webadaptorhost.domain.com/webadaptorname/portaladmin

2. Import the root CA certificate. Refer to Portal for ArcGIS: Import the root CA certificate for instructions.

Create a new workflow item using a new cloud configuration

Re-create a new workflow item using a new cloud configuration. Refer to ArcGIS Enterprise: ArcGIS Enterprise in the cloud for more information.