Shared Email Templates
Allow only specific values in custom input fields for Outlook emails
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If your templates contain custom input fields and you want to ensure that only allowed values are entered or selected, you can use regular expressions.
When creating a custom input field with the WhatToEnter macro in a template, switch to the Advanced tab.
Under Validate with regex, enter a regular expression to specify the pattern that the user input must match.
Select OK.
Save the template.
When you or your teammates insert such a template into an email message, the values entered or selected in the pop-up dialog will be checked against the regular expression you’ve specified. If a value doesn’t match, it won’t be inserted.
