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Sébastien RichardSébastien Richard 

Flow Parse Text and Split

Hi,
I use Flow to get information from a Custom Setting that stores in the field "ChatterGroupIds" --format type  text(255) -- a list of id separated by comma.
I would like parse this field and split it in a collection to Loop and call Quick Action "CollaborationGroup.NewGroupMember" for each id of the collection. Is it possible with a Flow ?
To workaround, I tried to create an APEX class with an @InvocableMethod with text field as input and list of id as output but it seems impossible.
Thanks a lot for your help.