whmcs integration xenforo User attempts to login to XenForo

an introduction :- I want the pricing of programming module allows whmcs Integration with vBulletin and XenForo where I want to registered customers whmcs that log on to vBulletin and XenForo automatically without the need to re-register for community Details: I have a script [login to view URL] and I have a script for xenforo and I want to make a new account in whmcs to register directly in xenforo. I want all registered accounts in whmcs to log in to the xenforo forum installed on my site Whether accounts created previously or new Consider the following 1. Keep in mind that in the whmcs script there are registered client accounts, you must create a mechanism to give them access to the forum after installing the software 2 - modification on whmcs or forums Xenforo and vBulletin should be added as a program Balgin or modul or Hack and I do not want to modify the core files of the forums or whmcs because this software always has updates and I do not want to lose it 3. will work in the forums of xenforo and the latest version of vBulletin and the fourth and fifth editions and WHMcs Supported Versions of v7.x.x and php version: 5.x 7.x 4 - give me a guarantee period against the disadvantages of programming for not less than 6 months