Hello Colette,
maybe I did miss something, but your question sounds for me like, if you would asking if it might be possible to for the ACP Exam right after
passing the CAPM Exam without any further learning.
The answer here would be clearly "no", right?
If you are working in an agile environment and if you do fulfill the ACP application requirements like stated by Elizabeth already, then it might be a good and logical next step for you, thriving for the ACP Credentials.
But be aware that the ACP Exam is much more difficult and complex than the CAPM Exam (not as much as the PMP Exam, but almost ...).
Just to make that point very clear.
Sorry, if I got you wrong.
regards,
Markus