I need a script to show from admin side and export in XML Customer Group ID and Group Name.
This is the code to show Customer Group ID on front-end. But this is not working in back-end:
$groupId = Mage::getSingleton('customer/session')->getCustomerGroupId();
Best Answer
You need to load the customer model by the customer id, e.g.:
$customer = Mage::getModel('customer/customer')->load($customerId);
Then based on the customer model you can get the group id with
$customer->getGroupId()
Mage::helper('customer')->getGroups()
returns a list of groups excluding non-logged in one, based on it you can determinecustomer_group_code
which will be the customer assigned group name