diff --git a/api/src/modules/scenario-interventions/dto/create.scenario-intervention.dto.ts b/api/src/modules/scenario-interventions/dto/create.scenario-intervention.dto.ts
index 33bc714cf..f82a6f1f7 100644
--- a/api/src/modules/scenario-interventions/dto/create.scenario-intervention.dto.ts
+++ b/api/src/modules/scenario-interventions/dto/create.scenario-intervention.dto.ts
@@ -430,22 +430,22 @@ export class CreateScenarioInterventionDtoV2 {
   newIndicatorCoefficients?: IndicatorCoefficientsDtoV2;
 
   @IsUUID()
-  @IsOptional()
-  @ApiPropertyOptional({
+  @IsNotEmpty()
+  @ApiProperty({
     description: `Id of the New Supplier`,
     type: String,
     example: 'bc5e4933-cd9a-4afc-bd53-56941b8adc111',
   })
-  newT1SupplierId?: string;
+  newT1SupplierId!: string;
 
   @IsUUID()
-  @IsOptional()
-  @ApiPropertyOptional({
+  @IsNotEmpty()
+  @ApiProperty({
     description: `Id of the New Producer`,
     type: String,
     example: 'bc5e4933-cd9a-4afc-bd53-56941b8adc222',
   })
-  newProducerId?: string;
+  newProducerId!: string;
 
   @ValidateIf(
     (dto: CreateScenarioInterventionDto) =>
diff --git a/api/src/modules/sourcing-locations/dto/sourcing-location-with-record.interface.ts b/api/src/modules/sourcing-locations/dto/sourcing-location-with-record.interface.ts
deleted file mode 100644
index a04f4aaa7..000000000
--- a/api/src/modules/sourcing-locations/dto/sourcing-location-with-record.interface.ts
+++ /dev/null
@@ -1,6 +0,0 @@
-import { SourcingLocation } from 'modules/sourcing-locations/sourcing-location.entity';
-
-export interface SourcingLocationWithRecord extends SourcingLocation {
-  year: number;
-  tonnage: number;
-}
diff --git a/api/src/modules/sourcing-locations/sourcing-location.entity.ts b/api/src/modules/sourcing-locations/sourcing-location.entity.ts
index 79a3b0cca..f489adc0b 100644
--- a/api/src/modules/sourcing-locations/sourcing-location.entity.ts
+++ b/api/src/modules/sourcing-locations/sourcing-location.entity.ts
@@ -170,7 +170,7 @@ export class SourcingLocation extends TimestampedBaseEntity {
   t1Supplier: Supplier;
 
   @Index()
-  @Column({ nullable: true })
+  @Column()
   t1SupplierId?: string;
 
   @ManyToOne(
@@ -185,7 +185,7 @@ export class SourcingLocation extends TimestampedBaseEntity {
   producer: Supplier;
 
   @Index()
-  @Column({ nullable: true })
+  @Column()
   producerId?: string;
 
   @ManyToOne(
diff --git a/api/test/entity-mocks.ts b/api/test/entity-mocks.ts
index c9ac136e0..27f195e5d 100644
--- a/api/test/entity-mocks.ts
+++ b/api/test/entity-mocks.ts
@@ -366,6 +366,7 @@ async function createSourcingLocation(
   additionalData: Partial<SourcingLocation> = {},
 ): Promise<SourcingLocation> {
   const material: Material = await createMaterial();
+
   const defaultData: DeepPartial<SourcingLocation> = {
     title: 'test sourcing location',
     locationAddressInput: 'pqrst',
diff --git a/api/test/integration/import-data/xlsx-uploads/files/test-base-dataset.xlsx b/api/test/integration/import-data/xlsx-uploads/files/test-base-dataset.xlsx
index d4514bc36..631872351 100644
Binary files a/api/test/integration/import-data/xlsx-uploads/files/test-base-dataset.xlsx and b/api/test/integration/import-data/xlsx-uploads/files/test-base-dataset.xlsx differ
diff --git a/api/test/integration/import-data/xlsx-uploads/sourcing-data-import.spec.ts b/api/test/integration/import-data/xlsx-uploads/sourcing-data-import.spec.ts
index 688ee8569..65899beef 100644
--- a/api/test/integration/import-data/xlsx-uploads/sourcing-data-import.spec.ts
+++ b/api/test/integration/import-data/xlsx-uploads/sourcing-data-import.spec.ts
@@ -324,9 +324,9 @@ describe('Sourcing Data import', () => {
     expect(businessUnitsRoots).toHaveLength(1);
 
     const suppliers: Supplier[] = await supplierRepository.find();
-    expect(suppliers).toHaveLength(5);
+    expect(suppliers).toHaveLength(6);
     const suppliersRoots: Supplier[] = await supplierRepository.findRoots();
-    expect(suppliersRoots).toHaveLength(4);
+    expect(suppliersRoots).toHaveLength(5);
 
     const sourcingRecords: SourcingRecord[] =
       await sourcingRecordRepository.find();