Hi Experts,
We have requirement to launch custom QA screen from standard Account screen and I have followed below steps:
1) Create Custom BO and create Object Based screen.
2) Open COD_Account_TI screen in UI designer.
3) Go to Extensibility Explorer and select anchor "Toolbar" to add New Custom button.
4) Click on "Add OBN Button" and I have select custom QA screen via PTP and provide name and other info.
5) I have activate all items and assigned to business user.
When I open Account screen I can able to see button on HTML5 version on Toolbar beside Action button shown below:

When I click on button i can able to open custom QA screen and its working fine.
But when I go to RUI and do the same I can not click on button because that button is disabled as shown below:
Can anyone help me why in HTML5 custom button is working and same button not working in RUI.
Is there any other configuration i need to do for RUI or something missing in my steps.
Regards,
Mithun