ldap post

I created a virtual table from Ldap source table, and I am able to do a odata GET call. When I try to make POST on the same table. It is giving the below errors :

{
"error": {
"code": "ServerErrorException",
"message":

{ "lang": "en-US", "value": "TEIID30492 TEIID30061 Insert is not allowed on the view LdapView.\"user\". A procedure may be needed to handle the Insert since: The query defining an updatable view has no valid target for INSERTs." }

}
}

My virtual table is a simple (select * from table) statement. and "Suports update" is checked for source and view. VDB file attached for reference
how do i make a successful post?
Thanks in advance,
Prashanthi