Describes the cause and action for error messages.
Error Message(English)：
vba invalid or unqualified reference
Outlook VBA to create a subject using combobox
https://stackoverflow.com/questions/54317849/outlook-vba-to-create-a-subject-using-combobox
Outlook 2010 VBA Invalid or Unqualified Reference
https://stackoverflow.com/questions/9473445/outlook-2010-vba-invalid-or-unqualified-reference
Outlook 2010 - rule running a VBA script gives "Script "" doesn't exist ...
https://stackoverflow.com/questions/28569187/outlook-2010-rule-running-a-vba-script-gives-script-doe・・・
User Peh - Stack Exchange
https://stackexchange.com/users/3888878/peh