When selecing IAPP and select exchange template from drop down menu.Getting below error
Error parsing template:01020005:3: The requested operation is not implemented yet.
Follow the instructions in https://support.f5.com/kb/en-us/solutions/public/13000/400/sol13497.html and download the supported Exchange template from downloads.f5.com.
Your description is a little poor.
May be you have imported a template not compliant with Bigip version ?
Another idea: are you triyng to use a template needing a module not deployed (es: APM)?