diff --git a/contracts/core/price-aggregator/tests/price_aggregator_whitebox_test.rs b/contracts/core/price-aggregator/tests/price_aggregator_whitebox_test.rs
index f44d9f76fc..a23edf113a 100644
--- a/contracts/core/price-aggregator/tests/price_aggregator_whitebox_test.rs
+++ b/contracts/core/price-aggregator/tests/price_aggregator_whitebox_test.rs
@@ -2,10 +2,7 @@ use multiversx_price_aggregator_sc::{
     price_aggregator_data::{OracleStatus, TimestampedPrice, TokenPair},
     PriceAggregator, MAX_ROUND_DURATION_SECONDS,
 };
-use multiversx_sc_modules::{
-    pause::EndpointWrappers as PauseEndpointWrappers,
-    staking::{EndpointWrappers as StakingEndpointWrappers, StakingModule},
-};
+use multiversx_sc_modules::{pause::PauseModule, staking::StakingModule};
 use multiversx_sc_scenario::imports::*;
 
 pub const DECIMALS: u8 = 0;
@@ -73,7 +70,7 @@ fn test_price_aggregator_submit() {
         .from(OWNER_ADDRESS)
         .to(PRICE_AGGREGATOR_ADDRESS)
         .whitebox(multiversx_price_aggregator_sc::contract_obj, |sc| {
-            sc.call_unpause_endpoint();
+            sc.unpause_endpoint();
         });
 
     // submit first timestamp too old
@@ -197,7 +194,7 @@ fn test_price_aggregator_submit_round_ok() {
         .from(OWNER_ADDRESS)
         .to(PRICE_AGGREGATOR_ADDRESS)
         .whitebox(multiversx_price_aggregator_sc::contract_obj, |sc| {
-            sc.call_unpause_endpoint();
+            sc.unpause_endpoint();
         });
 
     // submit first
@@ -304,7 +301,7 @@ fn test_price_aggregator_discarded_round() {
         .from(OWNER_ADDRESS)
         .to(PRICE_AGGREGATOR_ADDRESS)
         .whitebox(multiversx_price_aggregator_sc::contract_obj, |sc| {
-            sc.call_unpause_endpoint();
+            sc.unpause_endpoint();
         });
 
     // submit first
@@ -380,7 +377,7 @@ fn test_price_aggregator_slashing() {
         .from(OWNER_ADDRESS)
         .to(PRICE_AGGREGATOR_ADDRESS)
         .whitebox(multiversx_price_aggregator_sc::contract_obj, |sc| {
-            sc.call_unpause_endpoint();
+            sc.unpause_endpoint();
         });
 
     world
@@ -489,7 +486,7 @@ fn setup() -> (ScenarioWorld, Vec<Address>) {
             .to(PRICE_AGGREGATOR_ADDRESS)
             .egld(STAKE_AMOUNT)
             .whitebox(multiversx_price_aggregator_sc::contract_obj, |sc| {
-                sc.call_stake();
+                sc.stake();
             });
     }
 
diff --git a/framework/derive/src/contract_impl.rs b/framework/derive/src/contract_impl.rs
index 1f6b3c9383..b10d66d3ad 100644
--- a/framework/derive/src/contract_impl.rs
+++ b/framework/derive/src/contract_impl.rs
@@ -52,7 +52,7 @@ pub fn contract_implementation(
 
         impl<C> #trait_name_ident for C
         where
-        C: AutoImpl #(#supertraits_main)*
+            C: AutoImpl #(#supertraits_main)*
         {
             #(#auto_impls)*
 
@@ -75,15 +75,15 @@ pub fn contract_implementation(
         {
             #(#call_methods)*
 
-            fn call(&self, fn_name: &str) -> bool {
+            fn call(&mut self, fn_name: &str) -> bool {
                 #function_selector_body
             }
 
-            fn callback_selector(&self, mut ___cb_closure___: multiversx_sc::types::CallbackClosureForDeser<Self::Api>) -> multiversx_sc::types::CallbackSelectorResult<Self::Api> {
+            fn callback_selector(&mut self, mut ___cb_closure___: multiversx_sc::types::CallbackClosureForDeser<Self::Api>) -> multiversx_sc::types::CallbackSelectorResult<Self::Api> {
                 #callback_selector_body
             }
 
-            fn callback(&self) {
+            fn callback(&mut self) {
                 #callback_body
             }
         }
diff --git a/framework/derive/src/generate/endpoints_mod_gen.rs b/framework/derive/src/generate/endpoints_mod_gen.rs
index 4bba840a90..e30ac37604 100644
--- a/framework/derive/src/generate/endpoints_mod_gen.rs
+++ b/framework/derive/src/generate/endpoints_mod_gen.rs
@@ -37,7 +37,7 @@ pub fn generate_endpoints_mod(
                 A: multiversx_sc::api::VMApi ,
             {
                 super::EndpointWrappers::callback(
-                    &multiversx_sc::contract_base::UniversalContractObj::<A>::new(),
+                    &mut multiversx_sc::contract_base::UniversalContractObj::<A>::new(),
                 );
             }
         }
@@ -93,7 +93,7 @@ fn generate_wasm_endpoint(
             A: multiversx_sc::api::VMApi,
         {
             super::EndpointWrappers::#call_method_ident(
-                &multiversx_sc::contract_base::UniversalContractObj::<A>::new(),
+                &mut multiversx_sc::contract_base::UniversalContractObj::<A>::new(),
             );
         }
     }
diff --git a/framework/derive/src/generate/function_selector.rs b/framework/derive/src/generate/function_selector.rs
index 6f157724f8..3aed56f622 100644
--- a/framework/derive/src/generate/function_selector.rs
+++ b/framework/derive/src/generate/function_selector.rs
@@ -48,21 +48,20 @@ pub fn generate_function_selector_body(contract: &ContractTrait) -> proc_macro2:
     let module_calls =
         supertrait_gen::function_selector_module_calls(contract.supertraits.as_slice());
     quote! {
-        if match fn_name {
+        match fn_name {
             "callBack" => {
                 self::EndpointWrappers::callback(self);
-                return true;
+                true
             },
             "init" if <Self::Api as multiversx_sc::api::VMApi>::external_view_init_override() => {
                 multiversx_sc::external_view_contract::external_view_contract_constructor::<Self::Api>();
-                return true;
+                true
             },
             #(#match_arms)*
-            other => false
-        } {
-            return true;
+            other => {
+                #(#module_calls)*
+                false
+            }
         }
-        #(#module_calls)*
-        false
     }
 }
diff --git a/framework/derive/src/generate/method_call_gen.rs b/framework/derive/src/generate/method_call_gen.rs
index a34db90f06..74d3f3ce4f 100644
--- a/framework/derive/src/generate/method_call_gen.rs
+++ b/framework/derive/src/generate/method_call_gen.rs
@@ -27,7 +27,7 @@ pub fn generate_call_method(m: &Method) -> proc_macro2::TokenStream {
     let call_method_body = generate_endpoint_call_method_body(m);
     quote! {
         #[inline]
-        fn #call_method_ident (&self) {
+        fn #call_method_ident (&mut self) {
             #call_method_body
         }
     }
diff --git a/framework/derive/src/generate/snippets.rs b/framework/derive/src/generate/snippets.rs
index 6e66eb9ae4..91fc8a863f 100644
--- a/framework/derive/src/generate/snippets.rs
+++ b/framework/derive/src/generate/snippets.rs
@@ -67,7 +67,8 @@ pub fn impl_callable_contract() -> proc_macro2::TokenStream {
             A: multiversx_sc::api::VMApi + Send + Sync,
         {
             fn call(&self, fn_name: &str) -> bool {
-                EndpointWrappers::call(self, fn_name)
+                let mut obj = multiversx_sc::contract_base::UniversalContractObj::<A>::new();
+                EndpointWrappers::call(&mut obj, fn_name)
             }
         }
     }
diff --git a/framework/scenario/tests/contract_without_macros.rs b/framework/scenario/tests/contract_without_macros.rs
index c597bb9e81..ccdcc493fd 100644
--- a/framework/scenario/tests/contract_without_macros.rs
+++ b/framework/scenario/tests/contract_without_macros.rs
@@ -9,7 +9,7 @@
 #![allow(unused)]
 
 use multiversx_sc::{
-    contract_base::ProxyObjNew,
+    contract_base::{CallableContractBuilder, ProxyObjNew},
     types::{BigInt, ManagedAddress},
 };
 use multiversx_sc_scenario::api::{SingleTxApi, StaticApi};
@@ -57,19 +57,19 @@ mod module_1 {
 
     pub trait EndpointWrappers: VersionModule + multiversx_sc::contract_base::ContractBase {
         #[inline]
-        fn call_version(&self) {
+        fn call_version(&mut self) {
             multiversx_sc::io::call_value_init::not_payable::<Self::Api>();
             let result = self.version();
             multiversx_sc::io::finish_multi::<Self::Api, _>(&result)
         }
 
-        fn call_some_async(&self) {
+        fn call_some_async(&mut self) {
             self.some_async();
             multiversx_sc::io::finish_multi::<Self::Api, _>(&())
         }
 
-        fn call(&self, fn_name: &str) -> bool {
-            if match fn_name {
+        fn call(&mut self, fn_name: &str) -> bool {
+            match fn_name {
                 "callBack" => {
                     self.callback();
                     return true;
@@ -79,10 +79,13 @@ mod module_1 {
                     true
                 },
                 _other => false,
-            } {
-                return true;
             }
-            false
+        }
+        fn callback_selector(
+            &mut self,
+            mut ___cb_closure___: multiversx_sc::types::CallbackClosureForDeser<Self::Api>,
+        ) -> multiversx_sc::types::CallbackSelectorResult<Self::Api> {
+            multiversx_sc::types::CallbackSelectorResult::NotProcessed(___cb_closure___)
         }
     }
 
@@ -277,7 +280,7 @@ mod sample_adder {
         Adder + multiversx_sc::contract_base::ContractBase + super::module_1::EndpointWrappers
     {
         #[inline]
-        fn call_sum(&self) {
+        fn call_sum(&mut self) {
             <Self::Api as multiversx_sc::api::VMApi>::init_static();
             multiversx_sc::io::call_value_init::not_payable::<Self::Api>();
             let () = multiversx_sc::io::load_endpoint_args::<Self::Api, ()>(());
@@ -285,7 +288,7 @@ mod sample_adder {
             multiversx_sc::io::finish_multi::<Self::Api, _>(&result);
         }
         #[inline]
-        fn call_init(&self) {
+        fn call_init(&mut self) {
             <Self::Api as multiversx_sc::api::VMApi>::init_static();
             multiversx_sc::io::call_value_init::not_payable::<Self::Api>();
             let (initial_value, ()) = multiversx_sc::io::load_endpoint_args::<
@@ -295,7 +298,7 @@ mod sample_adder {
             self.init(initial_value);
         }
         #[inline]
-        fn call_upgrade(&self) {
+        fn call_upgrade(&mut self) {
             <Self::Api as multiversx_sc::api::VMApi>::init_static();
             multiversx_sc::io::call_value_init::not_payable::<Self::Api>();
             let (initial_value, ()) = multiversx_sc::io::load_endpoint_args::<
@@ -305,7 +308,7 @@ mod sample_adder {
             self.upgrade(initial_value);
         }
         #[inline]
-        fn call_add(&self) {
+        fn call_add(&mut self) {
             <Self::Api as multiversx_sc::api::VMApi>::init_static();
             multiversx_sc::io::call_value_init::not_payable::<Self::Api>();
             let (value, ()) = multiversx_sc::io::load_endpoint_args::<
@@ -314,8 +317,8 @@ mod sample_adder {
             >(("value", ()));
             self.add(value);
         }
-        fn call(&self, fn_name: &str) -> bool {
-            if match fn_name {
+        fn call(&mut self, fn_name: &str) -> bool {
+            match fn_name {
                 "callBack" => {
                     self::EndpointWrappers::callback(self);
                     return true;
@@ -346,19 +349,58 @@ mod sample_adder {
                     self.call_add();
                     true
                 },
-                other => false,
-            } {
-                return true;
+                other => {
+                    if super::module_1::EndpointWrappers::call(self, fn_name) {
+                        return true;
+                    }
+                    false
+                },
             }
-            false
         }
         fn callback_selector(
-            &self,
+            &mut self,
             mut ___cb_closure___: multiversx_sc::types::CallbackClosureForDeser<Self::Api>,
         ) -> multiversx_sc::types::CallbackSelectorResult<Self::Api> {
+            let ___cb_closure_matcher___ = ___cb_closure___.matcher::<32usize>();
+            if ___cb_closure_matcher___.matches_empty() {
+                return multiversx_sc::types::CallbackSelectorResult::Processed;
+            }
+            match super::module_1::EndpointWrappers::callback_selector(self, ___cb_closure___) {
+                multiversx_sc::types::CallbackSelectorResult::Processed => {
+                    return multiversx_sc::types::CallbackSelectorResult::Processed;
+                },
+                multiversx_sc::types::CallbackSelectorResult::NotProcessed(
+                    recovered_cb_closure,
+                ) => {
+                    ___cb_closure___ = recovered_cb_closure;
+                },
+            }
+            match super::module_1::EndpointWrappers::callback_selector(self, ___cb_closure___) {
+                multiversx_sc::types::CallbackSelectorResult::Processed => {
+                    return multiversx_sc::types::CallbackSelectorResult::Processed;
+                },
+                multiversx_sc::types::CallbackSelectorResult::NotProcessed(
+                    recovered_cb_closure,
+                ) => {
+                    ___cb_closure___ = recovered_cb_closure;
+                },
+            }
             multiversx_sc::types::CallbackSelectorResult::NotProcessed(___cb_closure___)
         }
-        fn callback(&self) {}
+        fn callback(&mut self) {
+            if let Some(___cb_closure___) =
+                multiversx_sc::types::CallbackClosureForDeser::storage_load_and_clear::<Self::Api>()
+            {
+                if let multiversx_sc::types::CallbackSelectorResult::NotProcessed(_) =
+                    self::EndpointWrappers::callback_selector(self, ___cb_closure___)
+                {
+                    multiversx_sc::api::ErrorApiImpl::signal_error(
+                        &<Self::Api as multiversx_sc::api::ErrorApi>::error_api_impl(),
+                        err_msg::CALLBACK_BAD_FUNC.as_bytes(),
+                    );
+                }
+            }
+        }
     }
 
     impl<A> EndpointWrappers for multiversx_sc::contract_base::UniversalContractObj<A> where
@@ -441,7 +483,7 @@ mod sample_adder {
             A: multiversx_sc::api::VMApi,
         {
             super::EndpointWrappers::call_sum(
-                &multiversx_sc::contract_base::UniversalContractObj::<A>::new(),
+                &mut multiversx_sc::contract_base::UniversalContractObj::<A>::new(),
             );
         }
         pub fn init<A>()
@@ -449,7 +491,7 @@ mod sample_adder {
             A: multiversx_sc::api::VMApi,
         {
             super::EndpointWrappers::call_init(
-                &multiversx_sc::contract_base::UniversalContractObj::<A>::new(),
+                &mut multiversx_sc::contract_base::UniversalContractObj::<A>::new(),
             );
         }
         pub fn upgrade<A>()
@@ -457,7 +499,7 @@ mod sample_adder {
             A: multiversx_sc::api::VMApi,
         {
             super::EndpointWrappers::call_upgrade(
-                &multiversx_sc::contract_base::UniversalContractObj::<A>::new(),
+                &mut multiversx_sc::contract_base::UniversalContractObj::<A>::new(),
             );
         }
         pub fn add<A>()
@@ -465,7 +507,7 @@ mod sample_adder {
             A: multiversx_sc::api::VMApi,
         {
             super::EndpointWrappers::call_add(
-                &multiversx_sc::contract_base::UniversalContractObj::<A>::new(),
+                &mut multiversx_sc::contract_base::UniversalContractObj::<A>::new(),
             );
         }
         pub fn callBack<A>()
@@ -473,7 +515,7 @@ mod sample_adder {
             A: multiversx_sc::api::VMApi,
         {
             super::EndpointWrappers::callback(
-                &multiversx_sc::contract_base::UniversalContractObj::<A>::new(),
+                &mut multiversx_sc::contract_base::UniversalContractObj::<A>::new(),
             );
         }
     }
@@ -597,7 +639,8 @@ mod sample_adder {
         A: multiversx_sc::api::VMApi,
     {
         fn call(&self, fn_name: &str) -> bool {
-            EndpointWrappers::call(self, fn_name)
+            let mut obj = multiversx_sc::contract_base::UniversalContractObj::<A>::new();
+            EndpointWrappers::call(&mut obj, fn_name)
         }
     }
 
@@ -770,8 +813,10 @@ fn contract_without_macros_basic() {
 
     assert_eq!(BigInt::from(100), adder.version());
 
+    let adder = sample_adder::ContractBuilder.new_contract_obj::<SingleTxApi>();
     assert!(!adder.call("invalid_endpoint"));
 
+    let adder = sample_adder::ContractBuilder.new_contract_obj::<SingleTxApi>();
     assert!(adder.call("getSum"));
 
     let mut own_proxy =