SharePoint online is still not allowing Apps to integrate into this menu. Suggest you configure the start options to start on item creation and start on item update when developing and testing. Then creating or editing the item will kick the workflow off for you.
An error occurred while saving the commentSteffen H. commented
We urgently need a solution for this, as we are about to migrate from SP13 to O365. A very huge amount of users would be affected, as we use the WF triggers via ECB-Menu in really many spots.
For us, there is no workaround with the item creation and edit triggers.Steffen H. supported this idea ·