diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0e591b311..cccc700d5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 
+- Renamed `Order` to `activities` in the `Account` database schema
 - Improved the language localization for German (`de`)
 
 ## 2.157.1 - 2025-04-29
diff --git a/apps/api/src/app/account/account.controller.ts b/apps/api/src/app/account/account.controller.ts
index c0f4dac6a..71ff8a044 100644
--- a/apps/api/src/app/account/account.controller.ts
+++ b/apps/api/src/app/account/account.controller.ts
@@ -57,17 +57,17 @@ export class AccountController {
   @HasPermission(permissions.deleteAccount)
   @UseGuards(AuthGuard('jwt'), HasPermissionGuard)
   public async deleteAccount(@Param('id') id: string): Promise<AccountModel> {
-    const account = await this.accountService.accountWithOrders(
+    const account = await this.accountService.accountWithActivities(
       {
         id_userId: {
           id,
           userId: this.request.user.id
         }
       },
-      { Order: true }
+      { activities: true }
     );
 
-    if (!account || account?.Order.length > 0) {
+    if (!account || account?.activities.length > 0) {
       throw new HttpException(
         getReasonPhrase(StatusCodes.FORBIDDEN),
         StatusCodes.FORBIDDEN
diff --git a/apps/api/src/app/account/account.service.ts b/apps/api/src/app/account/account.service.ts
index aab4c0766..a10eecac5 100644
--- a/apps/api/src/app/account/account.service.ts
+++ b/apps/api/src/app/account/account.service.ts
@@ -39,12 +39,12 @@ export class AccountService {
     return account;
   }
 
-  public async accountWithOrders(
+  public async accountWithActivities(
     accountWhereUniqueInput: Prisma.AccountWhereUniqueInput,
     accountInclude: Prisma.AccountInclude
   ): Promise<
     Account & {
-      Order?: Order[];
+      activities?: Order[];
     }
   > {
     return this.prismaService.account.findUnique({
@@ -62,8 +62,8 @@ export class AccountService {
     orderBy?: Prisma.AccountOrderByWithRelationInput;
   }): Promise<
     (Account & {
+      activities?: Order[];
       balances?: AccountBalance[];
-      Order?: Order[];
       Platform?: Platform;
     })[]
   > {
@@ -140,7 +140,7 @@ export class AccountService {
 
   public async getAccounts(aUserId: string): Promise<Account[]> {
     const accounts = await this.accounts({
-      include: { Order: true, Platform: true },
+      include: { activities: true, Platform: true },
       orderBy: { name: 'asc' },
       where: { userId: aUserId }
     });
@@ -148,15 +148,15 @@ export class AccountService {
     return accounts.map((account) => {
       let transactionCount = 0;
 
-      for (const order of account.Order) {
-        if (!order.isDraft) {
+      for (const { isDraft } of account.activities) {
+        if (!isDraft) {
           transactionCount += 1;
         }
       }
 
       const result = { ...account, transactionCount };
 
-      delete result.Order;
+      delete result.activities;
 
       return result;
     });
diff --git a/apps/api/src/app/order/order.service.ts b/apps/api/src/app/order/order.service.ts
index c2b822ac9..d1847635a 100644
--- a/apps/api/src/app/order/order.service.ts
+++ b/apps/api/src/app/order/order.service.ts
@@ -100,7 +100,7 @@ export class OrderService {
       userId: string;
     }
   ): Promise<Order> {
-    let Account: Prisma.AccountCreateNestedOneWithoutOrderInput;
+    let Account: Prisma.AccountCreateNestedOneWithoutActivitiesInput;
 
     if (data.accountId) {
       Account = {
diff --git a/apps/api/src/app/portfolio/portfolio.service.ts b/apps/api/src/app/portfolio/portfolio.service.ts
index 87b2bc9df..3aa9696b5 100644
--- a/apps/api/src/app/portfolio/portfolio.service.ts
+++ b/apps/api/src/app/portfolio/portfolio.service.ts
@@ -139,7 +139,7 @@ export class PortfolioService {
     }
 
     if (filterByDataSource && filterBySymbol) {
-      where.Order = {
+      where.activities = {
         some: {
           SymbolProfile: {
             AND: [
@@ -154,7 +154,7 @@ export class PortfolioService {
     const [accounts, details] = await Promise.all([
       this.accountService.accounts({
         where,
-        include: { Order: true, Platform: true },
+        include: { activities: true, Platform: true },
         orderBy: { name: 'asc' }
       }),
       this.getDetails({
@@ -170,8 +170,8 @@ export class PortfolioService {
     return accounts.map((account) => {
       let transactionCount = 0;
 
-      for (const order of account.Order) {
-        if (!order.isDraft) {
+      for (const { isDraft } of account.activities) {
+        if (!isDraft) {
           transactionCount += 1;
         }
       }
@@ -195,7 +195,7 @@ export class PortfolioService {
         )
       };
 
-      delete result.Order;
+      delete result.activities;
 
       return result;
     });
diff --git a/prisma/schema.prisma b/prisma/schema.prisma
index b88a5f9f8..c33f7d6cc 100644
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@@ -26,6 +26,7 @@ model Access {
 }
 
 model Account {
+  activities Order[]
   balance    Float            @default(0)
   balances   AccountBalance[]
   comment    String?
@@ -39,7 +40,6 @@ model Account {
   userId     String
   Platform   Platform?        @relation(fields: [platformId], references: [id])
   User       User             @relation(fields: [userId], onDelete: Cascade, references: [id])
-  Order      Order[]
 
   @@id([id, userId])
   @@index([currency])