I’ve added a custom field to the Customer Addresses with the following UpgradeData: public function upgrade(ModuleDataSetupInterface $setup, ModuleContextInterface $context) { /** @var CustomerSetup $customerSetup */ $customerSetup = $this->customerSetupFactory->create(['setup' => $setup]); $params = [ 'label' => 'House Number', 'type' => 'varchar', 'input' => 'text', 'required' => true, 'visible' => true, 'user_defined' […]