Hello
For certificate renewal I rebuilt the in-house application.
In Xcode 6.4 Although it will be exporting with updated certificate,
It was said that an error occurred in the export of the enterprise.
※ Arcive is successful.
Although it seems that you are being asked for an
Apple ID as a content of the error,
It was unnecessary item in Xcode 6.1.
It is unknown whether this is the cause, When you use the application built with Xcode 6.4, the activation lock sounds with high probability.
If there is information such as Xcode 7 or more is good I would like to share it.
Regards