How to add and remove values in list type field using flow

[SS1510]

I have a requirement, there is a table in which i have a field called record _user of list type, i want to add user in the field  using flow without removing other users and also if i remove any user through flow only that user should remove.
Does anyone have idea how to do that?

[Ankur Bawiskar]

@SS1510 

you can use flow variable of type String and store sysId of the user which needs to be added/removed

Then use "Set Flow Variables" flow logic and use script to append/remove only that user by accessing the field value.

Then use "Update Record" flow action to update that list type of field with the Flow variable

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[Ankur Bawiskar · Accepted solution]

@SS1510 

See below working example for adding

enhance it for removal

var currentWatchList = fd_data.trigger.current.watch_list.toString().split(',');
currentWatchList.push(fd_data.flow_var.usertoaddremove.toString());
return currentWatchList.toString();

For removal use this script

var currentWatchList = fd_data.trigger.current.watch_list.toString().split(',');

var indexToRemove = currentWatchList.indexOf(fd_data.flow_var.usertoaddremove.toString());

currentWatchList.splice(indexToRemove, 1);

return currentWatchList.toString();

Output: Working for addition

Output: Working for removal

💡 If my response helped, please mark it as correct ✅ and close the thread 🔒— this helps future readers find the solution faster! 🙏