I have a need that can't be accomplished with Workflow. I'm posting here hoping someone has some insight for me.

When a Campaign Member record is updated (to be specific - when a value in a particular custom field is updated), I need to create a completed Task on the Contact (or Lead) record that is associated with that Campaign Member record. I'm thinking this could be accomplished with an Apex Trigger. Unfortunately, I have almost no experience writing Apex Triggers.

So before I go down the path of trying to learn Apex and learn how to accomplish this particular goal, can anyone confirm if I can even achieve this goal using an Apex trigger? If so, and if you have any tips or helpful links, I'd really appreciate it. Thank you! Love the SF community!