Customer address unique attribute not validated

[bartlubbersen]

Preconditions

1. Magento 2.1.3
2. PHP7

Steps to reproduce

1. Add a new customer address attribute that should be unique.
2. Save the value in two different addresses with the same value. (via Admin)

Expected result

1. It should throw an error that the value must be unique.

Actual result

1. It is saving both addresses with the same value.

Comment

I tested this with two existing addresses and with adding a new address in both cases the problem exists.

[veloraven]

@bartlubbersen thank you for your report.
What Magento edition do you use?
New customer address attributes are enable in Enterprise Edition only. So if you use EE please report this issue via the Support portal of your account or Partner portal if you are a partner reporting on behalf of a merchant. Github is intended for Community edition reports given no account management for CE users. This will allow for proper tracking of issues at the account level.
If you use Community Edition please address your question at programming questions forum or Magento Stack Exchange. As it is not a native behavior of Magento CE and we can not treat it as an issue

[bartlubbersen]

@veloraven,
We are using CE and not enterprise, however this still is a bug and not a question. Since you can also add custom address attributes via setup scripts, so it still needs solving.

[ishakhsuvarov]

@bartlubbersen Please look into the Pull Request #9712 proposed by @bka and @storbahn
It is aimed to fix this issue, and is already merged in the branch develop. Hope that helps for now.