Why is it important to verify that a newly created newsletter is available on your publish instance?

Verifying that a newly created newsletter is available on your publish instance is essential because the campaign will attempt to read the newsletter from the publish server. In a typical AEM (Adobe Experience Manager) workflow, content is first created and reviewed in the author instance and then must be published to the publish instance to become accessible to end-users. If the newsletter is not available on the publish instance, any campaigns attempting to use that content would fail to retrieve it, leading to potential disruptions in distribution and engagement with subscribers. Ensuring availability on the publish instance is crucial for the seamless operation of marketing campaigns that rely on effective content deployment, thereby guaranteeing that the intended audience receives the correct and latest information.