diff --git a/massa-models/src/config/constants.rs b/massa-models/src/config/constants.rs
index 74c0bbabff1..57bf696d0d2 100644
--- a/massa-models/src/config/constants.rs
+++ b/massa-models/src/config/constants.rs
@@ -71,7 +71,7 @@ lazy_static::lazy_static! {
     /// node version
     pub static ref VERSION: Version = {
         if cfg!(feature = "sandbox") {
-            "SAND.22.1"
+            "SAND.23.0"
         } else {
             "TEST.23.0"
         }
@@ -225,8 +225,12 @@ pub const MAX_BOOTSTRAP_ERROR_LENGTH: u64 = 10000;
 pub const PROTOCOL_CONTROLLER_CHANNEL_SIZE: usize = 1024;
 /// Protocol event channel size
 pub const PROTOCOL_EVENT_CHANNEL_SIZE: usize = 1024;
-/// Pool controller channel size
-pub const POOL_CONTROLLER_CHANNEL_SIZE: usize = 1024;
+/// Pool controller operations channel size
+pub const POOL_CONTROLLER_OPERATIONS_CHANNEL_SIZE: usize = 1024;
+/// Pool controller endorsements channel size
+pub const POOL_CONTROLLER_ENDORSEMENTS_CHANNEL_SIZE: usize = 1024;
+/// Pool controller denunciations channel size
+pub const POOL_CONTROLLER_DENUNCIATIONS_CHANNEL_SIZE: usize = 1024;
 
 // ***********************
 // Constants used for execution module (injected from ConsensusConfig)
diff --git a/massa-node/src/main.rs b/massa-node/src/main.rs
index 660dde5b7fa..ff2852f6324 100644
--- a/massa-node/src/main.rs
+++ b/massa-node/src/main.rs
@@ -64,12 +64,14 @@ use massa_models::config::constants::{
     MAX_SIZE_CHANNEL_NETWORK_TO_ENDORSEMENT_HANDLER, MAX_SIZE_CHANNEL_NETWORK_TO_OPERATION_HANDLER,
     MAX_SIZE_CHANNEL_NETWORK_TO_PEER_HANDLER, MIP_STORE_STATS_BLOCK_CONSIDERED,
     MIP_STORE_STATS_COUNTERS_MAX, OPERATION_VALIDITY_PERIODS, PERIODS_PER_CYCLE,
-    POOL_CONTROLLER_CHANNEL_SIZE, POS_MISS_RATE_DEACTIVATION_THRESHOLD, POS_SAVED_CYCLES,
-    PROTOCOL_CONTROLLER_CHANNEL_SIZE, PROTOCOL_EVENT_CHANNEL_SIZE,
-    ROLL_COUNT_TO_SLASH_ON_DENUNCIATION, ROLL_PRICE, SELECTOR_DRAW_CACHE_SIZE, T0, THREAD_COUNT,
-    VERSION,
+    POS_MISS_RATE_DEACTIVATION_THRESHOLD, POS_SAVED_CYCLES, PROTOCOL_CONTROLLER_CHANNEL_SIZE,
+    PROTOCOL_EVENT_CHANNEL_SIZE, ROLL_COUNT_TO_SLASH_ON_DENUNCIATION, ROLL_PRICE,
+    SELECTOR_DRAW_CACHE_SIZE, T0, THREAD_COUNT, VERSION,
+};
+use massa_models::config::{
+    MAX_MESSAGE_SIZE, POOL_CONTROLLER_DENUNCIATIONS_CHANNEL_SIZE,
+    POOL_CONTROLLER_ENDORSEMENTS_CHANNEL_SIZE, POOL_CONTROLLER_OPERATIONS_CHANNEL_SIZE,
 };
-use massa_models::config::MAX_MESSAGE_SIZE;
 use massa_pool_exports::{PoolChannels, PoolConfig, PoolManager};
 use massa_pool_worker::start_pool_controller;
 use massa_pos_exports::{PoSConfig, SelectorConfig, SelectorManager};
@@ -498,7 +500,9 @@ async fn launch(
         max_operations_per_block: MAX_OPERATIONS_PER_BLOCK,
         max_operation_pool_size_per_thread: SETTINGS.pool.max_pool_size_per_thread,
         max_endorsements_pool_size_per_thread: SETTINGS.pool.max_pool_size_per_thread,
-        channels_size: POOL_CONTROLLER_CHANNEL_SIZE,
+        operations_channel_size: POOL_CONTROLLER_OPERATIONS_CHANNEL_SIZE,
+        endorsements_channel_size: POOL_CONTROLLER_ENDORSEMENTS_CHANNEL_SIZE,
+        denunciations_channel_size: POOL_CONTROLLER_DENUNCIATIONS_CHANNEL_SIZE,
         broadcast_enabled: SETTINGS.api.enable_broadcast,
         broadcast_endorsements_channel_capacity: SETTINGS
             .pool
diff --git a/massa-pool-exports/src/config.rs b/massa-pool-exports/src/config.rs
index 2fb6298cc5e..2a72cba04f9 100644
--- a/massa-pool-exports/src/config.rs
+++ b/massa-pool-exports/src/config.rs
@@ -25,8 +25,12 @@ pub struct PoolConfig {
     pub max_endorsements_pool_size_per_thread: usize,
     /// max number of endorsements per block
     pub max_block_endorsement_count: u32,
-    /// operations and endorsements communication channels size
-    pub channels_size: usize,
+    /// operations channel capacity
+    pub operations_channel_size: usize,
+    /// endorsements channel capacity
+    pub endorsements_channel_size: usize,
+    /// denunciations channel capacity
+    pub denunciations_channel_size: usize,
     /// whether operations broadcast is enabled
     pub broadcast_enabled: bool,
     /// endorsements channel capacity
diff --git a/massa-pool-exports/src/test_exports/config.rs b/massa-pool-exports/src/test_exports/config.rs
index 75079879e7f..b2dd058cce2 100644
--- a/massa-pool-exports/src/test_exports/config.rs
+++ b/massa-pool-exports/src/test_exports/config.rs
@@ -20,7 +20,9 @@ impl Default for PoolConfig {
             max_endorsements_pool_size_per_thread: 1000,
             max_operations_per_block: MAX_OPERATIONS_PER_BLOCK,
             max_block_endorsement_count: ENDORSEMENT_COUNT,
-            channels_size: 1024,
+            operations_channel_size: 1024,
+            endorsements_channel_size: 1024,
+            denunciations_channel_size: 1024,
             broadcast_enabled: false,
             broadcast_endorsements_channel_capacity: 2000,
             broadcast_operations_channel_capacity: 5000,
diff --git a/massa-pool-worker/src/worker.rs b/massa-pool-worker/src/worker.rs
index d24f2b78529..c9290c313ee 100644
--- a/massa-pool-worker/src/worker.rs
+++ b/massa-pool-worker/src/worker.rs
@@ -182,11 +182,12 @@ pub fn start_pool_controller(
     // denunciation_factory_tx: Sender<DenunciationPrecursor>,
     // denunciation_factory_rx: Receiver<DenunciationPrecursor>,
 ) -> (Box<dyn PoolManager>, Box<dyn PoolController>) {
-    let (operations_input_sender, operations_input_receiver) = sync_channel(config.channels_size);
+    let (operations_input_sender, operations_input_receiver) =
+        sync_channel(config.operations_channel_size);
     let (endorsements_input_sender, endorsements_input_receiver) =
-        sync_channel(config.channels_size);
+        sync_channel(config.endorsements_channel_size);
     let (denunciations_input_sender, denunciations_input_receiver) =
-        sync_channel(config.channels_size);
+        sync_channel(config.denunciations_channel_size);
     let operation_pool = Arc::new(RwLock::new(OperationPool::init(
         config,
         storage,