this is my first post here, so I hope I am posting in the right section
so as the title says, I am a developer and I want to develop a plugin / Add-on / Extension to read data from my application to Primavera and vice versa,
Is that possible? and if yes what do I need to begin? is there a guide or how to for this?
Thanks in advance.
You can start with Integration API or Web Service documentation on how to use it. If you are familiar with P6 functionality then it will become easy to map the apis with the functionality you want to develop.
All the guides are available at http://www.oracle.com/technetwork/apps-tech/primavera/documentation/index.html