diff --git a/apps/api/src/app/import/import.service.ts b/apps/api/src/app/import/import.service.ts
index 698d13e2..4d9613ee 100644
--- a/apps/api/src/app/import/import.service.ts
+++ b/apps/api/src/app/import/import.service.ts
@@ -586,7 +586,7 @@ export class ImportService {
     const assetProfiles: {
       [assetProfileIdentifier: string]: Partial<SymbolProfile>;
     } = {};
-    const dataSources = await this.dataProviderService.getDataSources();
+    const dataSources = await this.dataProviderService.getDataSources({ user });
 
     for (const [
       index,
diff --git a/apps/api/src/services/configuration/configuration.service.ts b/apps/api/src/services/configuration/configuration.service.ts
index 473d909e..602ad5e9 100644
--- a/apps/api/src/services/configuration/configuration.service.ts
+++ b/apps/api/src/services/configuration/configuration.service.ts
@@ -40,6 +40,9 @@ export class ConfigurationService {
       DATA_SOURCES_GHOSTFOLIO_DATA_PROVIDER: json({
         default: []
       }),
+      DATA_SOURCES_LEGACY: json({
+        default: []
+      }),
       ENABLE_FEATURE_FEAR_AND_GREED_INDEX: bool({ default: false }),
       ENABLE_FEATURE_READ_ONLY_MODE: bool({ default: false }),
       ENABLE_FEATURE_SOCIAL_LOGIN: bool({ default: false }),
diff --git a/apps/api/src/services/data-provider/data-provider.service.ts b/apps/api/src/services/data-provider/data-provider.service.ts
index 7c0df7a9..88ae136a 100644
--- a/apps/api/src/services/data-provider/data-provider.service.ts
+++ b/apps/api/src/services/data-provider/data-provider.service.ts
@@ -30,7 +30,7 @@ import type { Granularity, UserWithSettings } from '@ghostfolio/common/types';
 import { Inject, Injectable, Logger } from '@nestjs/common';
 import { DataSource, MarketData, SymbolProfile } from '@prisma/client';
 import { Big } from 'big.js';
-import { eachDayOfInterval, format, isValid } from 'date-fns';
+import { eachDayOfInterval, format, isBefore, isValid } from 'date-fns';
 import { groupBy, isEmpty, isNumber, uniqWith } from 'lodash';
 import ms from 'ms';
 
@@ -154,9 +154,22 @@ export class DataProviderService {
     return DataSource[this.configurationService.get('DATA_SOURCE_IMPORT')];
   }
 
-  public async getDataSources(): Promise<DataSource[]> {
+  public async getDataSources({
+    user
+  }: {
+    user: UserWithSettings;
+  }): Promise<DataSource[]> {
+    let dataSourcesKey: 'DATA_SOURCES' | 'DATA_SOURCES_LEGACY' = 'DATA_SOURCES';
+
+    if (
+      isBefore(user.createdAt, new Date('2025-03-23')) &&
+      this.configurationService.get('DATA_SOURCES_LEGACY')?.length > 0
+    ) {
+      dataSourcesKey = 'DATA_SOURCES_LEGACY';
+    }
+
     const dataSources: DataSource[] = this.configurationService
-      .get('DATA_SOURCES')
+      .get(dataSourcesKey)
       .map((dataSource) => {
         return DataSource[dataSource];
       });
@@ -608,7 +621,7 @@ export class DataProviderService {
       return { items: lookupItems };
     }
 
-    const dataSources = await this.getDataSources();
+    const dataSources = await this.getDataSources({ user });
 
     const dataProviderServices = dataSources.map((dataSource) => {
       return this.getDataProvider(DataSource[dataSource]);
diff --git a/apps/api/src/services/interfaces/environment.interface.ts b/apps/api/src/services/interfaces/environment.interface.ts
index 2f94739f..c0e22842 100644
--- a/apps/api/src/services/interfaces/environment.interface.ts
+++ b/apps/api/src/services/interfaces/environment.interface.ts
@@ -16,6 +16,7 @@ export interface Environment extends CleanedEnvAccessors {
   DATA_SOURCE_IMPORT: string;
   DATA_SOURCES: string[];
   DATA_SOURCES_GHOSTFOLIO_DATA_PROVIDER: string[];
+  DATA_SOURCES_LEGACY: string[];
   ENABLE_FEATURE_FEAR_AND_GREED_INDEX: boolean;
   ENABLE_FEATURE_READ_ONLY_MODE: boolean;
   ENABLE_FEATURE_SOCIAL_LOGIN: boolean;