"User not found" error through SOAP webservice request AddGroup.asmx

Question

Hi there,
With the help of NINTEX Im trying to create a new group via the webservice:
<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:m="http://schemas.microsoft.com/sharepoint/soap/directory/">
<soap:Header>
</soap:Header>
<soap:Body>
<m:AddGroup>
<m:groupName>TestGroup</m:groupName>
<m:ownerIdentifier>mydomain/user</m:ownerIdentifier>
<m:ownerType>user</m:ownerType>
<m:defaultUserLoginName>mydomain/user</m:defaultUserLoginName>
<m:description>
</m:description>
</m:AddGroup>
</soap:Body>
</soap:Envelope>
I keep getting a user not found. I tried the same approche in a SharePoint 2010 environment and there it works just fine. 
I tried changing the username to i0#.w|mydomain/user, after reading an article HOW TO: Add users to SharePoint Groups using SharePoint 2013 UserGroup.asmx Web Service on blogs.technet.com
Does anyone has an idea what the problem could be?

Answer 1

Hi,
From your description, an error occurred when you create a new group via the web service in SharePoint 2013.
Please use “\” instead of “/”, for example: use “i0#.w|mydomain\user” instead of “i0#.w|mydomain/user”.
Here are two other ways to create a new group for your reference:
1. Use SPServices.
http://spservices.codeplex.com/wikipage?title=Users%20and%20Groups
2. Use ECMA Client object model, the following code for your reference:
// Create Group
var groupCreationInfo = new SP.GroupCreationInformation();
groupCreationInfo.set_title('Collaboration ' + folderName);
groupCreationInfo.set_description('This is a new Collaboration Group');
this.oGroup = currentweb.get_siteGroups().add(groupCreationInfo);
clientContext.load(oGroup);
oGroup.set_owner(GroupObject);
oGroup.update();
Best Regards
Dennis Guo
TechNet Community Support