Moving mail from inbox to a folder

Hi …when I try to move an email to a particular folder using the drop down menu under ‘move to folder’, and type in the particular folder name I want the mail to go into, I get the error message: “the folder you have chosen does’nt match the required item type. Please choose a compatible folder”. How do I store my emails in an orderly manner where I can quickly find them? Thank you - Joanna