diff --git a/editoast/authz/src/regulator.rs b/editoast/authz/src/regulator.rs
index a752f956205..904c66dacf0 100644
--- a/editoast/authz/src/regulator.rs
+++ b/editoast/authz/src/regulator.rs
@@ -34,6 +34,7 @@ pub struct Regulator<S: StorageDriver> {
 pub trait StorageDriver: Clone {
     type Error: std::error::Error;
 
+    #[deprecated(note = "use editoast_models::User::retrieve_by_identity instead")]
     fn get_user_id(
         &self,
         user_identity: &UserIdentity,
@@ -54,6 +55,7 @@ pub trait StorageDriver: Clone {
         group_id: i64,
     ) -> impl Future<Output = Result<Option<GroupInfo>, Self::Error>> + Send;
 
+    #[expect(deprecated, reason = "to be removed soon")]
     async fn get_user_info_by_identity(
         &self,
         user_identity: &UserIdentity,
diff --git a/editoast/src/client/group.rs b/editoast/src/client/group.rs
index f5ca32e039d..0b697cc7053 100644
--- a/editoast/src/client/group.rs
+++ b/editoast/src/client/group.rs
@@ -151,8 +151,10 @@ pub async fn exclude_group(
         let uid = if let Ok(id) = user.parse::<i64>() {
             id
         } else {
-            let uid = driver.get_user_id(user).await?;
-            uid.ok_or_else(|| anyhow!("No user with identity '{user}' found"))?
+            editoast_models::User::retrieve_by_identity(user, pool.get().await?)
+                .await?
+                .ok_or_else(|| anyhow!("No user with identity '{user}' found"))?
+                .id
         };
         authz_users.insert(authz::User(uid));
     }
@@ -192,8 +194,10 @@ pub async fn include_group(
         let uid = if let Ok(id) = user.parse::<i64>() {
             id
         } else {
-            let uid = driver.get_user_id(user).await?;
-            uid.ok_or_else(|| anyhow!("No user with identity '{user}' found"))?
+            editoast_models::User::retrieve_by_identity(user, pool.get().await?)
+                .await?
+                .ok_or_else(|| anyhow!("No user with identity '{user}' found"))?
+                .id
         };
         authz_users.insert(authz::User(uid));
     }
diff --git a/editoast/src/client/roles.rs b/editoast/src/client/roles.rs
index 607b219831d..303cd731057 100644
--- a/editoast/src/client/roles.rs
+++ b/editoast/src/client/roles.rs
@@ -12,6 +12,7 @@ use authz::identity::UserInfo;
 use authz::v2::Authorizer;
 use clap::Args;
 use clap::Subcommand;
+use database::DbConnection;
 use database::DbConnectionPoolV2;
 use itertools::Itertools as _;
 use strum::IntoEnumIterator;
@@ -114,12 +115,15 @@ impl Display for Subject {
 async fn parse_and_fetch_subject(
     subject: &String,
     driver: &PgAuthDriver,
+    conn: DbConnection,
 ) -> anyhow::Result<Subject> {
     let id = if let Ok(id) = subject.parse::<i64>() {
         id
     } else {
-        let uid = driver.get_user_id(subject).await?;
-        uid.ok_or_else(|| anyhow!("No user with identity '{subject}' found"))?
+        editoast_models::User::retrieve_by_identity(subject, conn)
+            .await?
+            .ok_or_else(|| anyhow!("No user with identity '{subject}' found"))?
+            .id
     };
     let subject = if let Some(info) = driver.get_user_info(id).await? {
         Subject::new_user(id, info)
@@ -137,17 +141,18 @@ pub async fn list_subject_roles(
     pool: Arc<DbConnectionPoolV2>,
     openfga_config: OpenfgaConfig,
 ) -> anyhow::Result<()> {
-    let regulator = openfga_config.into_regulator(pool).await?;
-    let roles = match parse_and_fetch_subject(&subject, regulator.driver()).await? {
-        Subject {
-            id,
-            info: SubjectInfo::User(_),
-        } => regulator.user_roles(&authz::User(id)).await?,
-        Subject {
-            id,
-            info: SubjectInfo::Group(_),
-        } => regulator.group_roles(&authz::Group(id)).await?,
-    };
+    let regulator = openfga_config.into_regulator(pool.clone()).await?;
+    let roles =
+        match parse_and_fetch_subject(&subject, regulator.driver(), pool.get().await?).await? {
+            Subject {
+                id,
+                info: SubjectInfo::User(_),
+            } => regulator.user_roles(&authz::User(id)).await?,
+            Subject {
+                id,
+                info: SubjectInfo::Group(_),
+            } => regulator.group_roles(&authz::Group(id)).await?,
+        };
     if roles.is_empty() {
         info!("{subject} has no roles assigned");
         return Ok(());
@@ -173,6 +178,7 @@ pub async fn add_roles(
     pool: Arc<DbConnectionPoolV2>,
     openfga_config: OpenfgaConfig,
 ) -> anyhow::Result<()> {
+    let driver = PgAuthDriver::new(pool.clone());
     let openfga = &openfga_config.into_client().await?;
     let system = SystemAuthorizer {
         openfga,
@@ -192,7 +198,7 @@ pub async fn add_roles(
             .collect_vec()
             .join(", "),
     );
-    let subject = parse_and_fetch_subject(&subject, &PgAuthDriver::new(pool)).await?;
+    let subject = parse_and_fetch_subject(&subject, &driver, pool.get().await?).await?;
     let add_roles = authz::v2::add_roles(subject.into_authz(), roles);
     match system.authorize(add_roles).await?.access().await? {
         Ok(()) => Ok(()),
@@ -208,6 +214,7 @@ pub async fn remove_roles(
     pool: Arc<DbConnectionPoolV2>,
     openfga_config: OpenfgaConfig,
 ) -> anyhow::Result<()> {
+    let driver = PgAuthDriver::new(pool.clone());
     let openfga = &openfga_config.into_client().await?;
     let system = SystemAuthorizer {
         openfga,
@@ -227,7 +234,7 @@ pub async fn remove_roles(
             .collect_vec()
             .join(", "),
     );
-    let subject = parse_and_fetch_subject(&subject, &PgAuthDriver::new(pool)).await?;
+    let subject = parse_and_fetch_subject(&subject, &driver, pool.get().await?).await?;
     let remove_roles = authz::v2::remove_roles(subject.into_authz(), roles);
     match system.authorize(remove_roles).await?.access().await? {
         Ok(()) => Ok(()),
diff --git a/editoast/src/client/user.rs b/editoast/src/client/user.rs
index d893ff78234..79c35ff5ba7 100644
--- a/editoast/src/client/user.rs
+++ b/editoast/src/client/user.rs
@@ -7,7 +7,6 @@ use authz::identity::UserInfo;
 use clap::Args;
 use clap::Subcommand;
 use database::DbConnectionPoolV2;
-use editoast_models::PgAuthDriver;
 use editoast_models::User;
 use editoast_models::authn::user::AddIdentitiesError;
 use editoast_models::authn::user::UserWithIdentities;
@@ -150,14 +149,16 @@ pub async fn user_info(
     openfga_config: OpenfgaConfig,
     pool: Arc<DbConnectionPoolV2>,
 ) -> anyhow::Result<()> {
-    let regulator = openfga_config.into_regulator(pool).await?;
-    let driver = regulator.driver();
     let uid = if let Ok(id) = user.parse::<i64>() {
         id
     } else {
-        let uid = driver.get_user_id(&user).await?;
-        uid.ok_or_else(|| anyhow!("No user with identity '{user}' found"))?
+        editoast_models::User::retrieve_by_identity(&user, pool.get().await?)
+            .await?
+            .ok_or_else(|| anyhow!("No user with identity '{user}' found"))?
+            .id
     };
+    let regulator = openfga_config.into_regulator(pool).await?;
+    let driver = regulator.driver();
     let Some(UserInfo { identities, name }) = driver.get_user_info(uid).await? else {
         tracing::error!(user.id = uid, "User not found");
         return Ok(());
@@ -187,13 +188,13 @@ pub async fn delete_user(
     DeleteArgs { user }: DeleteArgs,
     pool: Arc<DbConnectionPoolV2>,
 ) -> anyhow::Result<()> {
-    let driver = PgAuthDriver::new(pool.clone());
-
     let uid = if let Ok(id) = user.parse::<i64>() {
         id
     } else {
-        let uid = driver.get_user_id(&user).await?;
-        uid.ok_or_else(|| anyhow!("No user with identity '{user}' found"))?
+        editoast_models::User::retrieve_by_identity(&user, pool.get().await?)
+            .await?
+            .ok_or_else(|| anyhow!("No user with identity '{user}' found"))?
+            .id
     };
 
     let conn = &mut pool.get().await?;