Open quick create from on command button click model driven power apps code

to open quick create form on command button click use below code.

function quickCreate() {


  var parameters = {};  
 //Set the Parent Customer column value to "Contoso".  
 parameters["hsbc_customer"] = "b2d7bd78-1d2c-ee11-bdf5-000d3a0a75a6";  
 parameters["hsbc_customername"] = "Catalina Bedford";  
 parameters["hsbc_customertype"] = "contact";  
 parameters["hsbc_type"] = 768280000;

    var entityFormOptions = {};
 
    entityFormOptions["entityName"] = "hsbc_hsbcbankaccount";
    entityFormOptions["useQuickCreateForm"] = true;
 
    Xrm.Navigation.openForm(entityFormOptions,parameters).then(
        function (success) {
            console.log(success);
        },
        function (error) {
            console.log(error);
        });
}

watch video here.

Open quick create form on command button click JS power apps

hope it helps.