How to change contents of email sent to supplier?

Requirement -

Need to change contents and rearrange some links shown on the email that is sent out to the supplier when a Negotiation is approved.
How to change the Email body - add more details, change content of the email subject ?

you can customize the notification content for notifications sent to suppliers using page composer. The user must be an admin user and access notification by logging into the Oracle BPM Worklist application. See http://www.oracle.com/webfolder/technetwork/tutorials/tutorial/cloud/r11/wn/r11_procurement_wn.htm#_Toc443569445

Answer

We followed the action plan provided by http://myforums.oracle.com/jive3/thread.jspa?messageID=8966423&#8966423.
"After logging into the BPM worklist application, select 'Administrative Tasks' in the tasks options on the left. Then open the notification you want to customize. If you have logged in as the Procurement Applications Administrator, you should see a link called 'Edit' on the top left side of the page. Once you click that, the notification opens into the Page Composer mode, and you will be able to customize the content as allowed by the Page Composer. Note that you do not need to go to the Administration view (as you can see in your attached document) for this. Simply open the notification from the worklist.
Document:
http://www.oracle.com/webfolder/technetwork/tutorials/tutorial/cloud/r11/wn/r11_procurement_wn.htm#_Modify_Supplier_Notifications

Now If you want to only update the text displayed on the BPM notification and ensure that it is translated, you can do it via the Customize User Interface Text tool. You can also update the text included on the e-mail with the Customize User Interface Text. You must be in a properly configured Sandbox to use the User Interface Text editor tool. It can be accessed from the Navigator > Tools > User Interface Text by an Application Administrator.
This document Extending the Applications for Functional Administrators ( https://docs.oracle.com/cd/E56614_01/common_op/OAEXT/toc.htm ) explains how and when to use the Page Composer and the Customize User Interface Text tool to extend Fusion application pages."

1st Option:
In BPM we override the text but after coming back it not reflecting. It is taking the old text.
Also We are not able to move the content or add a new content

2nd Option:
Navigator > Tools > User Interface Text by an Application Administrator
But nothing happening.

Alternatively

After logging into the BPM worklist application, select 'Administrative Tasks' in the tasks options on the left. Then open the notification you want to customize. If you have logged in as the Procurement Applications Administrator, you should see a link called 'Edit' on the top left side of the page. Once you click that, the notification opens into the Page Composer mode, and you will be able to customize the content as allowed by the Page Composer. Note that you do not need to go to the Administration view (as you can see in your attached document) for this. Simply open the notification from the worklist. You can try this on your internal environment.

Also, If you want to only update the text displayed on the BPM notification and ensure that it is translated, you can do it via the Customize User Interface Text tool. You can also update the text included on the e-mail with the Customize User Interface Text. You must be in a properly configured Sandbox to use the User Interface Text editor tool. It can be accessed from the Navigator > Tools > User Interface Text by an Application Administrator.

This document Extending the Applications for Functional Administrators explains how and when to use the Page Composer and the Customize User Interface Text tool to extend Fusion application pages