I have a multi select Lookup column . I have to populate values to the lookup column from another column on a button click. I achieved it using below code but when i try to click ok/save it is throwing error "Invalid Lookup Value" . Please help.
Note : I am doing this only through javascript /javascript client object model
var possible = document.createElement("OPTION");
possible.text = fieldValue[i];
possible.value = i;
possible.selected=true;
tagTarget.options.add(possible);
GipAddSelectedItems(fieldObject)