diff --git a/upgrade/sql/9.1.0.sql b/upgrade/sql/9.1.0.sql
index f15dd269a..1596362c3 100644
--- a/upgrade/sql/9.1.0.sql
+++ b/upgrade/sql/9.1.0.sql
@@ -128,3 +128,95 @@ INSERT INTO `PREFIX_hook` (`id_hook`, `name`, `title`, `description`, `position`
   (NULL, 'actionOverrideShippingFreePrice', 'Override price that determines free shipping', 'Allows modules to override the free shipping price and return their custom value, for example to specify it by zone or other criteria.', '1'),
   (NULL, 'actionOverrideShippingFreeWeight', 'Override weight that determines free shipping', 'Allows modules to override the free shipping weight and return their custom value, for example to specify it by zone or other criteria.', '1')
 ON DUPLICATE KEY UPDATE `title` = VALUES(`title`), `description` = VALUES(`description`);
+
+/* Insert B2B foundation */
+/* https://github.com/PrestaShop/PrestaShop/pull/40632 */
+CREATE TABLE `PREFIX_business_entity`
+(
+    `id_business_entity`       INT UNSIGNED AUTO_INCREMENT                     NOT NULL,
+    `enterprise_id`            VARCHAR(255) NOT NULL,
+    `external_ref`             VARCHAR(255) DEFAULT NULL,
+    `name`                     VARCHAR(255) NOT NULL,
+    `legal_name`               VARCHAR(255) DEFAULT NULL,
+    `flag_delivery_authorized` TINYINT(1)                                      NOT NULL DEFAULT 0,
+    `status`                   ENUM ('pending','active','inactive','rejected') NOT NULL DEFAULT 'pending',
+    `created_at`               DATETIME     NOT NULL,
+    `updated_at`               DATETIME     NOT NULL,
+    INDEX                      `business_entity_enterprise_id_idx` (`enterprise_id`),
+    INDEX                      `business_entity_external_ref_idx` (`external_ref`),
+    PRIMARY KEY (`id_business_entity`)
+) ENGINE=ENGINE_TYPE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
+
+CREATE TABLE `PREFIX_customer_b2b`
+(
+    `id_customer_b2b` INT UNSIGNED AUTO_INCREMENT         NOT NULL,
+    `id_customer`     INT UNSIGNED                        NOT NULL,
+    `status`          ENUM ('pending','active','refused') NOT NULL DEFAULT 'pending',
+    `external_ref`    VARCHAR(255) DEFAULT NULL,
+    `created_at`      DATETIME NOT NULL,
+    `updated_at`      DATETIME NOT NULL,
+    UNIQUE INDEX `uniq_customer_b2b_customer` (`id_customer`),
+    PRIMARY KEY (`id_customer_b2b`)
+) ENGINE=ENGINE_TYPE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
+
+CREATE TABLE `PREFIX_business_entity_customer_b2b`
+(
+    `id_business_entity_customer_b2b` INT UNSIGNED AUTO_INCREMENT NOT NULL,
+    `id_business_entity`              INT UNSIGNED                NOT NULL,
+    `id_customer_b2b`                 INT UNSIGNED                NOT NULL,
+    `id_role_b2b`                     INT UNSIGNED                NOT NULL,
+    `is_default`                      TINYINT(1)                  NOT NULL DEFAULT 0,
+    `created_at`                      DATETIME NOT NULL,
+    UNIQUE INDEX `uniq_be_customer` (`id_business_entity`, `id_customer_b2b`),
+    INDEX                             `business_entity_customer_b2b_be_idx` (`id_business_entity`),
+    INDEX                             `business_entity_customer_b2b_customer_idx` (`id_customer_b2b`),
+    INDEX                             `business_entity_customer_b2b_role_idx` (`id_role_b2b`),
+    PRIMARY KEY (`id_business_entity_customer_b2b`)
+) ENGINE=ENGINE_TYPE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
+
+CREATE TABLE `PREFIX_business_entity_identifier`
+(
+    `id_identifier`                  INT UNSIGNED AUTO_INCREMENT    NOT NULL,
+    `id_business_entity`         INT UNSIGNED                       NOT NULL,
+    `id_business_identifier`     INT UNSIGNED                       NOT NULL,
+    `value`              VARCHAR(255) NOT NULL,
+    UNIQUE INDEX `uniq_business_entity_identifier` (`id_business_entity`, `id_business_identifier`),
+    INDEX                `business_entity_identifier_id_business_entity_idx` (`id_business_entity`),
+    INDEX                `business_entity_identifier_id_business_identifier_idx` (`id_business_identifier`),
+    INDEX                `business_entity_identifier_value_idx` (`value`),
+    PRIMARY KEY (`id_identifier`)
+) ENGINE=ENGINE_TYPE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
+
+CREATE TABLE `PREFIX_business_identifier`
+(
+    `id_business_identifier` INT UNSIGNED AUTO_INCREMENT        NOT NULL,
+    `unremovable`    TINYINT(1)                                 NOT NULL DEFAULT 0,
+    `deleted`        TINYINT(1)                                 NOT NULL DEFAULT 0,
+    PRIMARY KEY (`id_business_identifier`)
+) ENGINE=ENGINE_TYPE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
+
+CREATE TABLE `PREFIX_business_entity_address`
+(
+    `id_business_entity` INT UNSIGNED                       NOT NULL,
+    `id_address`         INT UNSIGNED                       NOT NULL,
+    `address_type`       ENUM ('both','invoice','delivery') NOT NULL DEFAULT 'both',
+    PRIMARY KEY (`id_business_entity`, `id_address`),
+    INDEX                `business_entity_address_address_idx` (`id_address`)
+) ENGINE=ENGINE_TYPE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
+
+CREATE TABLE `PREFIX_b2b_role`
+(
+    `id_role` INT UNSIGNED AUTO_INCREMENT NOT NULL,
+    `role`    VARCHAR(64) NOT NULL,
+    UNIQUE INDEX `uniq_b2b_role` (`role`),
+    PRIMARY KEY (`id_role`)
+) ENGINE=ENGINE_TYPE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
+
+CREATE TABLE `PREFIX_b2b_role_authorization_role`
+(
+    `id_role`               INT UNSIGNED NOT NULL,
+    `id_authorization_role` INT UNSIGNED NOT NULL,
+    PRIMARY KEY (`id_role`, `id_authorization_role`),
+    INDEX                   `b2b_role_authorization_role_role_idx` (`id_role`),
+    INDEX                   `b2b_role_authorization_role_auth_role_idx` (`id_authorization_role`)
+) ENGINE=ENGINE_TYPE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
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