Optimizely Campaign - where is the opt in process ID?

When working with Optimizely Campaign, you will be familiar with opt in process. Basically when users subscribe to your website's newsletter, you want them to go through an opt in process. An opt-in process requires recipients to give a sender explicit permission to send them advertising mails.

Setting up the opt in process basically containing 2 steps:

1. Create the process in Opmizely Campaign
2. From your code, hook up to the opt in process via API call. For example, if using HTTP API, you can follow this guide: https://world.optimizely.com/documentation/developer-guides/campaign/http-api/services-and-operations/subscribe/

However at step 2, you will notice that you need to pass in the opt in process ID:

At the first glance, you will not be able to see it from the process that you have just created above.

I can tell you it is not easier to find.

So here it is....

Look at corner of the table listing those opt in process, and click on the dropdown arrow

Tick the ID checkbox, your process ID will appear in the table :)