MSCRM Restrict Customer lookup

365 CRM

function defaultcustomer_onLoad(executionContext){

var formContext=executionContext.getFormContext()

var control = formContext.getControl("parentcustomerid");

 control.setEntityTypes(["contact"]);//Contact or account

}

2016/365:

var control = Xrm.Page.getControl("from");
 control.getAttribute().setLookupTypes(["contact"]);


2013/2015:

function CustomerLookupOnlyContact() {
 
    var customerCtrl = Xrm.Page.getControl("customerid");
    customerCtrl.setFocus();

    var customerInput = document.getElementById("customerid_i");
    customerInput.setAttribute("lookuptypes", "2");   //2: Contact , 1: Account
   customerInput.setAttribute("defaulttype", 2);       // Set defaultType to Contact
    //customerInput.setAttribute("autoresolve", 2);       // Partially entered name will be resolved with contact record.
    //customerInput.setAttribute("createpermissiondictionary", "account:false,contact:true");
 //   customerInput.setAttribute("lookuptypenames", "contact:2:Contact");
   // customerInput.setAttribute("DefaultViewId", "{A2D479C5-53E3-4C69-ADDD-802327E67A0D}");

}