In Bloomreach Engagement, you will often have to refer to your campaign or analysis. For example, an evaluation of your newsletter campaign must always specify _which_ campaign exactly it should refer to. For this, you can either use the name of the campaign (`campaign_name`) or the ID (`campaign_id`).
## What is the difference
`campaign_name` is the name you set in Bloomreach Engagement. This is pretty straightforward, however, you might accidentally give multiple campaigns the same name, in which case your use case will be corrupted. That's why it is safer to use `campaign_id`, which is always unique.

Note that `
campaign_id` only applies to scenarios and email campaigns. You can also work with `experiment_id`, `banner_id`, `recommendation_id` or `survey_id`. This guide is also relevant if you need to use an ID of any analysis, such as a report, aggregates, etc...
## Where to find the ID campaign_id
Open the Bloomreach Engagement component of which you need the ID. Now you can copy it from the URL:
Double-click on any part of the ID to select it easily.
Now you can use it anywhere in Bloomreach Engagement through the filters:
