How do I create a build plan which will trigger automation tests from another repository

[Rhiannon Llewellyn-Leigh]

Hi,

I am looking for some help on how to create a build plan that will allow the following;

1. Code is deployed from one repository to an environment
2. When the code is deployed UI Automation tasks are triggered. The code for the automation is held in a separate code repository.

The reason for this is we have applications held in different repositories and we want to be able to fully integration test and keep the automation out of the product code base.

Many thanks for any help