How to populate the proxyAddresses attribute in Active Directory

[Waldy]

How can you populate the proxyAddress attribute in Active Directory?  The field in the connector Add User action is shown as a text field.  However, AD expects an array of email addresses.  I tried creating a new list type variable, populating the list and then using that in the action, but that still results in a single string in the user record.

[Waldy]

It turns out that this is a bug in the connector when it discovers the available attributes dynamically.  Attributes that are populated with multiple items in your test user should be returned as arrays, but they are all returned as strings.  The search action does do this when it finds a matching user, multi value attributes are shown as arrays.  Support have suggested to user the On-prem command-line script connector and do this via PowerShell.  I'm guessing Workato do not want to have to fix a legacy connector.