To link the two smart campaigns across different programs, the initiating campaign ("03 Success") must actively call the target campaign ("01 Send Invite"). This is accomplished by adding a "Request Campaign" flow step to the "03 Success" campaign. In turn, the "01 Send Invite" campaign must be configured to listen for this specific call. This requires adding the "Campaign is Requested" trigger to its smart list. This trigger/flow step combination is the standard, most efficient method in Marketo for one smart campaign to execute another, ensuring the demo invite is sent immediately after a person achieves success in the ebook program.

B. The "03 Success" campaign is the initiator; it requires a flow step to request an action, not a trigger to listen for one.

C. While this could work, using "Request Campaign" is the more direct and standard best practice for inter-campaign communication without the side effect of changing program membership.

D. This is incomplete. Adding the "Campaign is Requested" trigger is necessary, but without the corresponding "Request Campaign" flow step in the other campaign, it will never be activated.

1. Adobe Experience League - Marketo Engage Documentation: The "Request Campaign" flow step is used to trigger a separate smart campaign. The documentation states, "Use the Request Campaign flow step to trigger another smart campaign." This confirms the need for this step in the "03 Success" campaign.

Source: Adobe Experience League, "Request Campaign Flow Step," in Marketo Engage Product Docs.

2. Adobe Experience League - Marketo Engage Documentation: The "Campaign is Requested" trigger is the corresponding listener for the "Request Campaign" flow step. The documentation specifies, "Use the Campaign is Requested trigger in a smart campaign when you want it to be triggered from another smart campaign's Request Campaign flow step." This confirms the need for this trigger in the "01 Send Invite" campaign.

Source: Adobe Experience League, "Campaign is Requested Trigger," in Marketo Engage Product Docs.