I Have migrated the list's from default to snowflake, with the same name and internal name. but existing campaigns are referring these list's using readlist activity. but still the campaigns are readlist activity is referring default. if i delete these activity and recreated means it is working fine...

I have updated my all list from default datasource to externalaccount : ffda, (Snowflake), but old campaign workflows are used the same list but that is pointing default. how to update the all readlist activities? 

I have technical workflow that is created the list into External database(SnowFlake) How can i read that list in another workflow while i want to use readlist activity both the workflows in V8