You may encounter in the outsourcing company only one developer certificate but to release packaging a lot of applications, I also encountered this pit, on the Internet to check the information and ask others have no solution, the weekend to take the company certificate to test finally understand.
First, if you have a developer certificate and have published an app and want to add an app package, you need the following steps:
1. Add or create a new AppID in the Developer center, then fill in your app name and Bundleid to add the success.
2. In the PP description file, you need to re-add a new profile, then select the AppID you just added, then generate the description package, and then the local computer re-download the new profile installation, and then run the project can be packaged.
Note: The certificate does not need to be re-downloaded, as long as the original certificate can be, but the PP description file each add a new application needs to re-add a new pp file, and then download to the computer to install, each pp file corresponding to a AppID and project
A developer certificate in iOS How to create multiple app apps