diff --git a/.changeset/ten-months-run.md b/.changeset/ten-months-run.md
new file mode 100644
index 00000000..7af93bdd
--- /dev/null
+++ b/.changeset/ten-months-run.md
@@ -0,0 +1,5 @@
+---
+"@comet/brevo-api": minor
+---
+
+Add `BREVO_FOLDER_ID` to environment variables to allow overwriting default value `1`
diff --git a/.env b/.env
index 5857a47d..6325b516 100644
--- a/.env
+++ b/.env
@@ -85,3 +85,4 @@ NEXT_PUBLIC_CAMPAIGN_IS_PREVIEW=false
 REDIRECT_URL_FOR_IMPORT=$SITE_URL
 BREVO_ALLOWED_REDIRECT_URL=http://${DEV_DOMAIN:-localhost}${WORKAROUND_DOTENV_ISSUE}:${SITE_PORT}
 CAMPAIGNS_FRONTEND_URL=http://${DEV_DOMAIN:-localhost}${WORKAROUND_DOTENV_ISSUE}:${SITE_PORT} # doesn't work, TODO: add actual mailing frontend
+BREVO_FOLDER_ID=1
diff --git a/demo/api/src/app.module.ts b/demo/api/src/app.module.ts
index 38b0765d..5c9b9981 100644
--- a/demo/api/src/app.module.ts
+++ b/demo/api/src/app.module.ts
@@ -148,6 +148,7 @@ export class AppModule {
                                     sender: { name: config.brevo.sender.name, email: config.brevo.sender.email },
                                     allowedRedirectUrl: config.brevo.allowedRedirectUrl,
                                     redirectUrlForImport: config.brevo.redirectUrlForImport,
+                                    folderId: config.brevo.folderId ?? 1, // folderId is required, folder #1 is created by default
                                 };
                             } else {
                                 return {
@@ -156,6 +157,7 @@ export class AppModule {
                                     sender: { name: config.brevo.sender.name, email: config.brevo.sender.email },
                                     allowedRedirectUrl: config.brevo.allowedRedirectUrl,
                                     redirectUrlForImport: config.brevo.redirectUrlForImport,
+                                    folderId: config.brevo.folderId ?? 1, // folderId is required, folder #1 is created by default
                                 };
                             }
                         },
diff --git a/demo/api/src/config/config.ts b/demo/api/src/config/config.ts
index 3eb8c825..72e1ac40 100644
--- a/demo/api/src/config/config.ts
+++ b/demo/api/src/config/config.ts
@@ -64,6 +64,7 @@ export function createConfig(processEnv: NodeJS.ProcessEnv) {
                 email: envVars.BREVO_SENDER_EMAIL,
             },
             redirectUrlForImport: envVars.REDIRECT_URL_FOR_IMPORT,
+            folderId: envVars.BREVO_FOLDER_ID,
         },
         campaign: {
             url: envVars.CAMPAIGN_URL,
diff --git a/demo/api/src/config/environment-variables.ts b/demo/api/src/config/environment-variables.ts
index b094b38f..23f92d70 100644
--- a/demo/api/src/config/environment-variables.ts
+++ b/demo/api/src/config/environment-variables.ts
@@ -1,5 +1,5 @@
 /* eslint-disable @typescript-eslint/naming-convention */
-import { BlobStorageConfig } from "@comet/cms-api";
+import { BlobStorageConfig, IsUndefinable } from "@comet/cms-api";
 import { Transform, Type } from "class-transformer";
 import { IsBase64, IsBoolean, IsEmail, IsInt, IsNumber, IsOptional, IsString, MinLength, ValidateIf } from "class-validator";
 
@@ -142,4 +142,9 @@ export class EnvironmentVariables {
 
     @IsString()
     CAMPAIGN_BASIC_AUTH_PASSWORD: string;
+
+    @IsNumber()
+    @IsUndefinable()
+    @Type(() => Number)
+    BREVO_FOLDER_ID?: number;
 }
diff --git a/packages/api/src/brevo-api/brevo-api-contact.service.ts b/packages/api/src/brevo-api/brevo-api-contact.service.ts
index 3627751d..4f68e857 100644
--- a/packages/api/src/brevo-api/brevo-api-contact.service.ts
+++ b/packages/api/src/brevo-api/brevo-api-contact.service.ts
@@ -186,10 +186,12 @@ export class BrevoApiContactsService {
     }
 
     public async createBrevoContactList(title: string, scope: EmailCampaignScopeInterface): Promise<number | undefined> {
+        const folderId = this.config.brevo.resolveConfig(scope).folderId;
+
         try {
             const contactList = {
                 name: title,
-                folderId: 1, // folderId is required, folder #1 is created by default
+                folderId: folderId ?? 1,
             };
 
             const data = await this.getContactsApi(scope).createList(contactList);
diff --git a/packages/api/src/config/brevo-module.config.ts b/packages/api/src/config/brevo-module.config.ts
index e1de61f7..7307b29d 100644
--- a/packages/api/src/config/brevo-module.config.ts
+++ b/packages/api/src/config/brevo-module.config.ts
@@ -15,6 +15,7 @@ export interface BrevoModuleConfig {
             };
             allowedRedirectUrl: string;
             redirectUrlForImport: string;
+            folderId?: number;
         };
         BrevoContactAttributes?: Type<BrevoContactAttributesInterface>;
         BrevoContactFilterAttributes?: Type<BrevoContactFilterAttributesInterface>;