There is a bug in dataverse when configuring option sets to allow for multiple selection. TLDR: a simple semicolon will break your field!

Currently:

• I (a system administrator) can add a semicolon character in the label for an option set value.
• I can save/ publish the option set field and add it to a form in my application.
• When a user interacts with the option set in the application, they are unable to select the value with the semicolon in the label.

As an application user, it is unclear to me why I cannot select this value. As a system administrator, it is similarly unclear to me what I did wrong in configuring this field. After opening a support ticket, Microsoft confirmed that they can reproduce the issue but that it is operating by design.

Request:

• A user can not add a semicolon to an option set value label and is presented with a helpful error message if they do.
• A user is prevented from save/ publish of the option set if a semicolon is included in a label.
• The character restrictions of option set labels are published on Microsoft's publicly available documentation.