If you are adding secondary CTAs to have your visitor Learn More about a service or product I don't think you can have too many. You want to make sure you are leading them on a journey. However, if you have the Homepage link to a service page that links to a service, you always want their to be an end point to the journey. So maybe the end goal is a Call or Appointment or demo...lead them to where you want them to go as it makes sense. Hope that helps!
What about the use of secondary CTA's in the body of a webpage? Can that be done too much?
If you are adding secondary CTAs to have your visitor Learn More about a service or product I don't think you can have too many. You want to make sure you are leading them on a journey.
However, if you have the Homepage link to a service page that links to a service, you always want their to be an end point to the journey. So maybe the end goal is a Call or Appointment or demo...lead them to where you want them to go as it makes sense.
Hope that helps!