If I use filter, e.g. in a template, no preview is shown even though the selection should give a filtered recipient amount. Once I click back and forth within Campaign a preview shows. How do I configure the template / the campaign so that there is always a preview if recipients match the filters?
Double check that the filters are made correctly. If the y are associated to a workflow remember to update it inside it. Lastly if you are using a mapping that has an extended schema, check that it has been extended properly also.
Additionally you can check the following doc: Errors article when previewing a profile
Hope it helps and please do let me know if you need more help.
Best,
Celia
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