When editing an existing contact, user is able to update an unique email to a duplicated email

[nus-se-bot]

Users should not be able to change the email of an existing contact from a unique address to an address that is used by another contact. Email should be unique since it is personal and not shared with others.

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_{[original: nus-tic4002-AY2122s2/pe-interim#238] [original labels: type.FeatureFlaw severity.Low]}

[chenghuiyuan]

Team's Response

The target user, i.e. secondary school teacher may have supplier contacts. For corporate, it is very common that there is a department email e.g. engineering@corporate.com. The email will be shared by a few people in the department.

Duplicate status (if any):

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