How can we customize the notification sent when a negotiation is closed for responding ?

Summary:

Hi Experts ,

I have a requirement to customize the notification content that is sent when a negotiation is closed for responding in oracle fusion sourcing module . System generated notification is triggeed at this stage : however , I have not been able to locate the relevant subject area or template to modify the content.

Could you please advise whether this notification subject area can be found in BPM or elsewhere ?

Thank you

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