diff --git a/front/src/applications/stdcm/hooks/useStdcm.ts b/front/src/applications/stdcm/hooks/useStdcm.ts
index 97a5ee24506..251a21cc73c 100644
--- a/front/src/applications/stdcm/hooks/useStdcm.ts
+++ b/front/src/applications/stdcm/hooks/useStdcm.ts
@@ -20,7 +20,7 @@ import {
 import { useOsrdConfSelectors } from 'common/osrdContext';
 import { useStoreDataForSpeedLimitByTagSelector } from 'common/SpeedLimitByTagSelector/useStoreDataForSpeedLimitByTagSelector';
 import { setFailure } from 'reducers/main';
-import type { OsrdStdcmConfState } from 'reducers/osrdconf/types';
+import { getStdcmConf } from 'reducers/osrdconf/stdcmConf/selectors';
 import { updateSelectedTrainId } from 'reducers/simulationResults';
 import { useAppDispatch } from 'store';
 import { castErrorToFailure } from 'utils/error';
@@ -49,8 +49,8 @@ const useStdcm = ({
 
   const dispatch = useAppDispatch();
   const { t } = useTranslation(['translation', 'stdcm']);
-  const { getConf, getTimetableID } = useOsrdConfSelectors();
-  const osrdconf = useSelector(getConf) as OsrdStdcmConfState;
+  const { getTimetableID } = useOsrdConfSelectors();
+  const osrdconf = useSelector(getStdcmConf);
   const timetableId = useSelector(getTimetableID);
   const requestPromise = useRef<ReturnType<typeof postTimetableByIdStdcm>>();
 
diff --git a/front/src/modules/trainschedule/components/ManageTrainSchedule/AddTrainScheduleButton.tsx b/front/src/modules/trainschedule/components/ManageTrainSchedule/AddTrainScheduleButton.tsx
index ce9c4cb85bc..c2e8acfb3e3 100644
--- a/front/src/modules/trainschedule/components/ManageTrainSchedule/AddTrainScheduleButton.tsx
+++ b/front/src/modules/trainschedule/components/ManageTrainSchedule/AddTrainScheduleButton.tsx
@@ -8,10 +8,10 @@ import type {
   TrainScheduleBase,
   TrainScheduleResult,
 } from 'common/api/osrdEditoastApi';
-import { useOsrdConfSelectors } from 'common/osrdContext';
 import { useStoreDataForRollingStockSelector } from 'modules/rollingStock/components/RollingStockSelector/useStoreDataForRollingStockSelector';
 import trainNameWithNum from 'modules/trainschedule/components/ManageTrainSchedule/helpers/trainNameHelper';
 import { setFailure, setSuccess } from 'reducers/main';
+import { getOperationalStudiesConf } from 'reducers/osrdconf/operationalStudiesConf/selectors';
 import { useAppDispatch } from 'store';
 import { isoDateToMs, isoDateWithTimezoneToSec } from 'utils/date';
 import { castErrorToFailure } from 'utils/error';
@@ -38,8 +38,7 @@ const AddTrainScheduleButton = ({
   const dispatch = useAppDispatch();
   const { t } = useTranslation(['operationalStudies/manageTrainSchedule']);
 
-  const { getConf } = useOsrdConfSelectors();
-  const simulationConf = useSelector(getConf);
+  const simulationConf = useSelector(getOperationalStudiesConf);
 
   // TODO TS2 : remove this when rollingStockName will replace rollingStockId in the store
   const { rollingStock } = useStoreDataForRollingStockSelector();
diff --git a/front/src/modules/trainschedule/components/ManageTrainSchedule/hooks/useUpdateTrainSchedule.ts b/front/src/modules/trainschedule/components/ManageTrainSchedule/hooks/useUpdateTrainSchedule.ts
index 99d58445d1b..00569b74bb8 100644
--- a/front/src/modules/trainschedule/components/ManageTrainSchedule/hooks/useUpdateTrainSchedule.ts
+++ b/front/src/modules/trainschedule/components/ManageTrainSchedule/hooks/useUpdateTrainSchedule.ts
@@ -7,6 +7,7 @@ import { useOsrdConfSelectors } from 'common/osrdContext';
 import { useStoreDataForRollingStockSelector } from 'modules/rollingStock/components/RollingStockSelector/useStoreDataForRollingStockSelector';
 import checkCurrentConfig from 'modules/trainschedule/components/ManageTrainSchedule/helpers/checkCurrentConfig';
 import { setFailure, setSuccess } from 'reducers/main';
+import { getOperationalStudiesConf } from 'reducers/osrdconf/operationalStudiesConf/selectors';
 import { updateSelectedTrainId } from 'reducers/simulationResults';
 import { useAppDispatch } from 'store';
 import { formatToIsoDate } from 'utils/date';
@@ -25,9 +26,9 @@ const useUpdateTrainSchedule = (
   const { t } = useTranslation(['operationalStudies/manageTrainSchedule']);
   const [putTrainScheduleById] = osrdEditoastApi.endpoints.putTrainScheduleById.useMutation();
   const dispatch = useAppDispatch();
-  const { getConf, getName, getStartTime } = useOsrdConfSelectors();
+  const { getName, getStartTime } = useOsrdConfSelectors();
   const confName = useSelector(getName);
-  const simulationConf = useSelector(getConf);
+  const simulationConf = useSelector(getOperationalStudiesConf);
   const startTime = useSelector(getStartTime);
   const { rollingStock } = useStoreDataForRollingStockSelector();
 
diff --git a/front/src/reducers/osrdconf/operationalStudiesConf/selectors.ts b/front/src/reducers/osrdconf/operationalStudiesConf/selectors.ts
index beb12ced5d5..3d9b81fd652 100644
--- a/front/src/reducers/osrdconf/operationalStudiesConf/selectors.ts
+++ b/front/src/reducers/osrdconf/operationalStudiesConf/selectors.ts
@@ -1,20 +1,21 @@
-import {
-  operationalStudiesConfSlice,
-  type OperationalStudiesConfState,
-} from 'reducers/osrdconf/operationalStudiesConf';
+import type { RootState } from 'reducers';
+import { operationalStudiesConfSlice } from 'reducers/osrdconf/operationalStudiesConf';
 import buildCommonConfSelectors from 'reducers/osrdconf/osrdConfCommon/selectors';
 
 const buildOperationalStudiesConfSelectors = () => {
-  const commonConfSelectors = buildCommonConfSelectors<OperationalStudiesConfState>(
-    operationalStudiesConfSlice
-  );
+  const commonConfSelectors = buildCommonConfSelectors(operationalStudiesConfSlice);
+  const getOperationalStudiesConf = (state: RootState) => state[operationalStudiesConfSlice.name];
+
   return {
     ...commonConfSelectors,
+    getOperationalStudiesConf,
   };
 };
 
 const selectors = buildOperationalStudiesConfSelectors();
 
+export const { getOperationalStudiesConf } = selectors;
+
 export type OperationalStudiesConfSelectors = typeof selectors;
 
 export default selectors;
diff --git a/front/src/reducers/osrdconf/osrdConfCommon/selectors.ts b/front/src/reducers/osrdconf/osrdConfCommon/selectors.ts
index 028ff6bd59b..0822931d92d 100644
--- a/front/src/reducers/osrdconf/osrdConfCommon/selectors.ts
+++ b/front/src/reducers/osrdconf/osrdConfCommon/selectors.ts
@@ -5,14 +5,10 @@ import type { RootState } from 'reducers';
 import buildInfraStateSelectors from 'reducers/infra/selectors';
 import type { OperationalStudiesConfSlice } from 'reducers/osrdconf/operationalStudiesConf';
 import type { StdcmConfSlice } from 'reducers/osrdconf/stdcmConf';
-import type { OsrdConfState } from 'reducers/osrdconf/types';
 import { makeSubSelector } from 'utils/selectors';
 
-const buildCommonConfSelectors = <ConfState extends OsrdConfState>(
-  slice: OperationalStudiesConfSlice | StdcmConfSlice
-) => {
-  const getConf = (state: RootState) => state[slice.name] as ConfState;
-  const makeOsrdConfSelector = makeSubSelector<ConfState>(getConf);
+const buildCommonConfSelectors = (slice: OperationalStudiesConfSlice | StdcmConfSlice) => {
+  const makeOsrdConfSelector = makeSubSelector((state: RootState) => state[slice.name]);
 
   const getPathSteps = makeOsrdConfSelector('pathSteps');
 
@@ -26,7 +22,6 @@ const buildCommonConfSelectors = <ConfState extends OsrdConfState>(
 
   return {
     ...buildInfraStateSelectors(slice),
-    getConf,
     getConstraintDistribution: makeOsrdConfSelector('constraintDistribution'),
     getName: makeOsrdConfSelector('name'),
     getTrainCount: makeOsrdConfSelector('trainCount'),
diff --git a/front/src/reducers/osrdconf/stdcmConf/selectors.ts b/front/src/reducers/osrdconf/stdcmConf/selectors.ts
index d3909c675cb..35f3b9c113a 100644
--- a/front/src/reducers/osrdconf/stdcmConf/selectors.ts
+++ b/front/src/reducers/osrdconf/stdcmConf/selectors.ts
@@ -5,13 +5,16 @@ import type { OsrdStdcmConfState } from 'reducers/osrdconf/types';
 import { makeSubSelector } from 'utils/selectors';
 
 const buildStdcmConfSelectors = () => {
-  const commonConfSelectors = buildCommonConfSelectors<OsrdStdcmConfState>(stdcmConfSlice);
-  const makeOsrdConfSelector = makeSubSelector<OsrdStdcmConfState>(commonConfSelectors.getConf);
+  const commonConfSelectors = buildCommonConfSelectors(stdcmConfSlice);
+
+  const getStdcmConf = (state: RootState) => state[stdcmConfSlice.name];
+  const makeOsrdConfSelector = makeSubSelector<OsrdStdcmConfState>(getStdcmConf);
 
   const getStdcmPathSteps = makeOsrdConfSelector('stdcmPathSteps');
 
   return {
     ...commonConfSelectors,
+    getStdcmConf,
     getStandardStdcmAllowance: makeOsrdConfSelector('standardStdcmAllowance'),
     getTotalMass: makeOsrdConfSelector('totalMass'),
     getTotalLength: makeOsrdConfSelector('totalLength'),
@@ -40,6 +43,8 @@ const buildStdcmConfSelectors = () => {
 
 const selectors = buildStdcmConfSelectors();
 
+export const { getStdcmConf } = selectors;
+
 export type StdcmConfSelectors = typeof selectors;
 
 export default selectors;
diff --git a/front/src/reducers/osrdconf/types.ts b/front/src/reducers/osrdconf/types.ts
index cf592299847..8bec928808a 100644
--- a/front/src/reducers/osrdconf/types.ts
+++ b/front/src/reducers/osrdconf/types.ts
@@ -49,7 +49,7 @@ export interface StandardAllowance {
   value?: number;
 }
 
-export interface OsrdStdcmConfState extends OsrdConfState {
+export type OsrdStdcmConfState = OsrdConfState & {
   stdcmPathSteps: StdcmPathStep[];
   standardStdcmAllowance?: StandardAllowance;
   totalMass?: number;
@@ -57,7 +57,7 @@ export interface OsrdStdcmConfState extends OsrdConfState {
   maxSpeed?: number;
   towedRollingStockID?: number;
   linkedTrains: LinkedTrains;
-}
+};
 
 export type PathStep = PathItemLocation & {
   id: string;