Find A Marketo Campaign ID
Issue:
I am looking for the ID to one of my campaigns for a SOAP API project I am working on.
Solution:
The ID can be found in the URL of the campaign.
1.1 Log into Marketo, under Marketing Activities, find and select the campaign in question.

1.2 The URL to the campaign will look something like:

The Campaign ID is between "SC" and "A", in the above example it's "1150".