How often will content in catalog be updated from CM?

Content from CM that should display in your catalog will be updated daily for any Active or Future Catalogs. The reindex runs in the morning (around 6 AM ET) and should complete in under an hour. 

Archived catalogs will not reindex automatically; so if you have changes that need to be displayed in an Archived catalog, please reach out to Support to have those catalogs reindexed for you.