Maybe there's something straightforward I'm missing here, but if so I can't work it out.
On a Nintex O365 list form I add a Choice - multiple control. This, as I am aware, stores data as a collection. There doesn't however appear to be any way to store that data 'as is' to a data type on a SP list.
I can't connect the control directly with either a Single line of text or Multiple lines of text field. The only option I've found is to create a variable and apply a 'convertToString' function on the multiple - choice/collection variable and then use a rule to trick that variable value to write to a single line of text field I can connect to a SP list field. Only after that can I run a WF process over that to pull the collection apart.
This seems like a convoluted workaround. Surely there must be a simpler way to get the values from this type of control.