which calls to action have been completed

The search results primarily provide examples and explanations of call-to- action (CTA) phrases and their effectiveness rather than a list of completed calls to action. To clarify, are you asking which specific campaigns or projects with calls to action have been completed, or are you seeking information about commonly used calls to action that have successfully led to completion of tasks? If it is the former, could you specify the context or domain (e.g., marketing campaigns, political initiatives, fundraising drives)? If it is the latter, I can summarize effective calls to action that are known to lead to successful completion of goals.