Customer EAV Attribute not Showing in Admin

Question

Before upgrading to Magento 2.2.1, I was using version 2.1.10 and made a custom uuid attribute for customers. The attribute was added to the customer form in the admin panel and saved correctly. However after upgrading to 2.2.1, the attribute no longer shows in the form. It is still present in the eav_attributes db table so I'm not sure what has changed.

This is my code used to initial setup the attribute:

public function __construct(CustomerSetupFactory $customerSetupFactory,
                            AttributeSetFactory $attributeSetFactory)
{
    $this->customerSetupFactory = $customerSetupFactory;
    $this->attributeSetFactory = $attributeSetFactory;
}

public function install(ModuleDataSetupInterface $setup,
                        ModuleContextInterface $context)
{
    /** @var CustomerSetup $customerSetup */
    $customerSetup = $this->customerSetupFactory->create(['setup' => $setup]);
    $setup->startSetup();
    $attributesInfo = [
        'uuid' => [
            'label' => 'UUID',
            'type' => 'varchar',
            'input' => 'text',
            'position' => 1000,
            'visible' => true,
            'required' => false,
            'system' => 0,
            'user_defined' => true,
            'unique' => true,
        ]
    ];
    $customerEntity = $customerSetup->getEavConfig()->getEntityType('customer');
    $attributeSetId = $customerEntity->getDefaultAttributeSetId();
    /** @var $attributeSet AttributeSet */
    $attributeSet = $this->attributeSetFactory->create();
    $attributeGroupId = $attributeSet->getDefaultGroupId($attributeSetId);
    foreach ($attributesInfo as $attributeCode => $attributeParams) {
        $customerSetup->addAttribute(Customer::ENTITY, $attributeCode, $attributeParams);
    }
    $magentoUuidAttribute = $customerSetup->getEavConfig()
        ->getAttribute(Customer::ENTITY, 'uuid');
    $magentoUuidAttribute->addData([
        'attribute_set_id' => $attributeSetId,
        'attribute_group_id' => $attributeGroupId,
        'used_in_forms' => ['adminhtml_customer'],
    ]);
    $magentoUuidAttribute->save();
    $setup->endSetup();
}

}

Any help would be greatly appreciated.

Answer 1

It seem to be visible only when there full 4 opitons of 'used_in_forms','customer_account_create','customer_account_edit', 'checkout_register','adminhtml_customer' . Don't worry because even when you set this. that attribute will not be visible in Register form

Answer 2

Create UI component xml file for that, File path and name should be : Namespace/Module/view/adminhtml/ui_component/customer_form.xml

<?xml version="1.0" encoding="UTF-8"?>
<form xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Ui:etc/ui_configuration.xsd">
    <fieldset name="customer">
        <field name="ATTRIBUTECODE" formElement="input">
            <settings>
                <visible>true</visible>
            </settings>
        </field>
    </fieldset>
</form>

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