You’ll have to reach out to WES Canada via their contact center, and pay the fees for a Canadian evaluation. What they will essentially do is move your file from the US database to the Canadian. This way, you don’t have to send your transcripts to WES again. But if you have picked up a Master’s degree after your US evaluation, you will have to go through the whole process of a Canadian ECA for your Master’s degree alone. It is highly recommended that you confirm with WES before transferring your application as this process may change in the future.