Use the parameter nopage=yes when the template doesn't use an article parameter.
Use the parameter nothankyou=yes when the template doesn't end in thank you.
Template documentation
This template should always be substituted (i.e., use {{subst:Single notice}}). Any accidental transclusions will be automatically substituted by a bot.
Usage:
{{subst:Single notice}}
{{subst:Single notice|Article}} references a specific article
{{subst:Single notice|Article|Additional text}} adds text onto the end of the message instead of "Thank you"
This template conforms to guidelines organized by the user warnings project. Please discuss the general visual appearance of these templates (for example, the image in the top-left corner) on the user warning talk page.
Please refer to the index of message templates before using any template on user talk pages to warn a user. Applying the best template available for your purpose may help reduce confusion from the message you are sending.
Please remember to substitute the template using {{subst:Single notice}} rather than {{single notice}}.
This template uses a parser function. To give greater detail to your message, you may add the article and some additional text to the end of the template.
Template documentation