How to clear out the pending internal events or external calls?

Summary:

Our entire integration queue is backlogged due to too many web visits in our pending queue. How can we clear out the queue so that our Leads and other important data can reach our CRM in a timely manner? 

Content (required):

**This post was created as part of a How to Service Request (SR)

Version (include the version you are using, if applicable):

10

Code Snippet (add any code snippets that support your topic, if applicable):

Not Applicable