function readOnly(count){ }
Starting November 20, the site will be set to read-only. On December 4, 2023,
forum discussions will move to the Trailblazer Community.
+ Start a Discussion
inbox outbox 7inbox outbox 7 

What does "first-mile" mean in outbound messaging?

When using middleware, outbound messaging becomes a “first-mile” guarantee of delivery.
What does that mean? Can someone explain with a scenario?
SwethaSwetha (Salesforce Developers) 
Can you share the source of this statement? Is there a related salesforce article?It will help understand the context better. Thanks 
inbox outbox 7inbox outbox 7

Please check outbound message in the below link.