Populate people picker from another list

Question

Hi,
I have a task list that i want to populate the assigned to column with lookup information based on another list, by matching the "Project Name" of the two lists by using SPD 2013, no coding 
Any thoughts?
Thanks a lot in advance

Answer 1

Hi,
Per my knowledge, if you want to populate the Assigned To column value from another list in the New Item form in SharePoint Designer, then you need to use code to achieve this goal.
Here is the code example(my lookup column name is “lookup” in the task list and the People and Group field in the other list (ListA) is “User”):
<script src="http://code.jquery.com/jquery-1.10.2.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function () {
$("select[Title='lookup']").blur(function()//change the Title to the column name of your lookup column
var val1=$("select[Title='lookup']").val();
getItems(val1);
function getItems(val){
var clientContext = new SP.ClientContext('http://sp');//change the URL to your site
var oList = clientContext.get_web().get_lists().getByTitle('lookup test'); //change the list name to your list where the lookup column get values.
var camlQuery = new SP.CamlQuery();
camlQuery.set_viewXml('<View><Query><Where><Eq><FieldRef Name=\'ID\'/><Value Type=\'Counter\'>'+val+'</Value></Eq></Where></Query></View>');
this.collListItem = oList.getItems(camlQuery);
clientContext.load(collListItem);
clientContext.executeQueryAsync(Function.createDelegate(this, this.onQuerySucceeded), Function.createDelegate(this, this.onQueryFailed));
function onQuerySucceeded(sender, args) {
var listItemEnumerator = collListItem.getEnumerator();
while (listItemEnumerator.moveNext()) {
var oListItem = listItemEnumerator.get_current();
for (var i = 0; i < oListItem.get_item("User").length; i++) {
var val2=oListItem.get_item("User")[i].get_lookupValue();
SetAndResolvePeoplePicker(val2);
function onQueryFailed(sender, args) {
alert('Request failed. ' + args.get_message() + '\n' + args.get_stackTrace());
function SetAndResolvePeoplePicker(userAccountName) {
var controlName = "Assigned To";
var peoplePickerDiv = $("[id$='ClientPeoplePicker'][title='" + controlName + "']");
console.log(peoplePickerDiv);
var peoplePickerEditor = peoplePickerDiv.find("[title='" + controlName + "']");
var spPeoplePicker = SPClientPeoplePicker.SPClientPeoplePickerDict[peoplePickerDiv[0].id];
peoplePickerEditor.val(userAccountName);
spPeoplePicker.AddUnresolvedUserFromEditor(true);
spPeoplePicker.SetEnabledState(false);
$('.sp-peoplepicker-delImage').css('display','none');
</script>
After that, the values will be populated in the New Item form after you have selected the lookup column value.
If you just want to set the Assigned To filed value, then you can use workflow to update the column value after creating the task.
More reference:
http://www.sharepointcolumn.com/sp2013-setting-people-picker-value-in-newform-aspx/
Best regards.
Thanks
Victoria Xia
TechNet Community Support