I have a many collections created and i need all the data in this collections in one Variable to used it in flow
. . Any help from here ?

I have a many collections created and i need all the data in this collections in one Variable to used it in flow
. . Any help from here ?
You can create a parameter in the flow for each collection and then pass them in the run line. But I don't know of any way to combine them into a single variable.