Recommendation in multiple eZ publish installations

Question: I installed the eZ Recommendation extension on my development installation as well as on my productive environment. I get recommendations from my development installation on the productive system and vice versa. How can I change that?

Answer: You should not use one YOOCHOOSE customer ID with multiple installations. If you have a development installation besides a productive installation, ask YOOCHOOSE for two separate customer IDs to avoid interference between recommendations.

The second option is to reset the recommender engine after finishing the testing and then use the customer ID for the productive installation only.