Solved
How to replicate content to preview in aem as cloud
Aem as cloud provides the preview instance before publish any lead on how to replicate the content into preview.
You can create a workflow model that uses the Publish Content Tree process step and set the "agentId" parameter to "preview" in the Arguments field.
agentId=preview (default is publish) - replicated to preview instead of publish
includeChildren=true (default is false) - children are published too instead of just the path
Check the below documentation for more clarity about "Publish Content Tree" and all other params that you can use.
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