Open Task button does not appear on mobile devices - My Inbox

Hi,

I am using My Inbox with one custom workflow.

The workflow starts an SAP transaction using the Open Task button.

Open Task button appears only if I'm using a browser on the desktop like Google Chrome.

Open Task button does not appear if the Fiori runs on mobile devices.

What should I set up for the Open Task button to appear on mobile devices?

Thank you

Everson