Are you performing CDC-related steps (Start journal, Add to CDC, etc.) manually? - manually means right click on the model, and then Change Data Capture > Add to CDC, etc. If so, you should include those steps in your package, so that they will be executed when you export the scenario to Prod environment.
The steps should be defined as follows:
1. Add to CDC + Start Journal: drag and drop the model you have to monitor to the package. Then select "Journalizing Model" from the Type list. Afterwards check "Start" and "Add Subscribers" options, and add the subscriber you will use (just enter the name and click on "Add" button).
2. Extend Window + Lock Subscribers: drag and drop the model again, and now you have to check "Extend Window" and "Lock Subscribers" options. Select the previously defined subscriber.
3. Purge Journal + Unlock Subscribers: after you have integrated your data via interfaces (I assume you already have this step), check "Purge Journal" and "Unlock Subscribers" in the model step. Select again the subscriber.
You will probably have to define as a very first step an OdiWaitForLogData step, which will be waiting for new changes in your model, and which will allow you to complete the full CDC-cycle.
Take a look also to the following article: http://odiexperts.com/cdc-consistent/
Hope this will help. Regards,