@MazeStricks,
A similar issue is reported on the Magento forums at:
I also faced the same issue while exporting customers from the admin panel via CSV and XML on Magento EE 2.2.3
{
"0": "Notice: Undefined offset: 7 in /vendor/magento/module-customer/Ui/Component/DataProvider/Document.php on line 136",
"1": "#0 /vendor/magento/module-customer/Ui/Component/DataProvider/Document.php(136): Magento\\Framework\\App\\ErrorHandler->handler(8, 'Undefined offse...', '/app/wtzyes327l...', 136, Array)\n#1 /vendor/magento/module-customer/Ui/Component/DataProvider/Document.php(102): Magento\\Customer\\Ui\\Component\\DataProvider\\Document->setGenderValue()\n#2 /vendor/magento/module-ui/Model/Export/MetadataProvider.php(159): Magento\\Customer\\Ui\\Component\\DataProvider\\Document->getCustomAttribute('gender')\n#3 /vendor/magento/module-ui/Model/Export/ConvertToCsv.php(84): Magento\\Ui\\Model\\Export\\MetadataProvider->getRowData(Object(Magento\\Customer\\Ui\\Component\\DataProvider\\Document), Array, Array)\n#4 /vendor/magento/module-ui/Controller/Adminhtml/Export/GridToCsv.php(72): Magento\\Ui\\Model\\Export\\ConvertToCsv->getCsvFile()\n#5 /vendor/magento/framework/App/Action/Action.php(107): Magento\\Ui\\Controller\\Adminhtml\\Export\\GridToCsv->execute()\n#6 /vendor/magento/module-backend/App/AbstractAction.php(229): Magento\\Framework\\App\\Action\\Action->dispatch(Object(Magento\\Framework\\App\\Request\\Http))\n#7 /vendor/magento/framework/Interception/Interceptor.php(58): Magento\\Backend\\App\\AbstractAction->dispatch(Object(Magento\\Framework\\App\\Request\\Http))\n#8 /vendor/magento/framework/Interception/Interceptor.php(138): Magento\\Ui\\Controller\\Adminhtml\\Export\\GridToCsv\\Interceptor->___callParent('dispatch', Array)\n#9 /vendor/magento/module-backend/App/Action/Plugin/Authentication.php(143): Magento\\Ui\\Controller\\Adminhtml\\Export\\GridToCsv\\Interceptor->Magento\\Framework\\Interception\\{closure}(Object(Magento\\Framework\\App\\Request\\Http))\n#10 /vendor/magento/framework/Interception/Interceptor.php(135): Magento\\Backend\\App\\Action\\Plugin\\Authentication->aroundDispatch(Object(Magento\\Ui\\Controller\\Adminhtml\\Export\\GridToCsv\\Interceptor), Object(Closure), Object(Magento\\Framework\\App\\Request\\Http))\n#11 /vendor/magento/framework/Interception/Interceptor.php(153): Magento\\Ui\\Controller\\Adminhtml\\Export\\GridToCsv\\Interceptor->Magento\\Framework\\Interception\\{closure}(Object(Magento\\Framework\\App\\Request\\Http))\n#12 /generated/code/Magento/Ui/Controller/Adminhtml/Export/GridToCsv/Interceptor.php(26): Magento\\Ui\\Controller\\Adminhtml\\Export\\GridToCsv\\Interceptor->___callPlugins('dispatch', Array, NULL)\n#13 /vendor/magento/framework/App/FrontController.php(55): Magento\\Ui\\Controller\\Adminhtml\\Export\\GridToCsv\\Interceptor->dispatch(Object(Magento\\Framework\\App\\Request\\Http))\n#14 /vendor/magento/framework/Interception/Interceptor.php(58): Magento\\Framework\\App\\FrontController->dispatch(Object(Magento\\Framework\\App\\Request\\Http))\n#15 /vendor/magento/framework/Interception/Interceptor.php(138): Magento\\Framework\\App\\FrontController\\Interceptor->___callParent('dispatch', Array)\n#16 /vendor/magento/framework/Interception/Interceptor.php(153): Magento\\Framework\\App\\FrontController\\Interceptor->Magento\\Framework\\Interception\\{closure}(Object(Magento\\Framework\\App\\Request\\Http))\n#17 /generated/code/Magento/Framework/App/FrontController/Interceptor.php(26): Magento\\Framework\\App\\FrontController\\Interceptor->___callPlugins('dispatch', Array, Array)\n#18 /vendor/magento/framework/App/Http.php(135): Magento\\Framework\\App\\FrontController\\Interceptor->dispatch(Object(Magento\\Framework\\App\\Request\\Http))\n#19 /vendor/magento/framework/App/Bootstrap.php(256): Magento\\Framework\\App\\Http->launch()\n#20 /pub/index.php(37): Magento\\Framework\\App\\Bootstrap->run(Object(Magento\\Framework\\App\\Http\\Interceptor))\n#21 {main}",
"url": "/admin/mui/export/gridToCsv/key/4b1c73d5e71f0802f16b0380aecd481a7ec5f2b6a45b7006a243d13dd3ce9be4/?filters%5Bplaceholder%5D=true&search=&namespace=customer_listing&selected=false",
"script_name": "/index.php"
}
For me though, the issue was caused during setting Gender of the customer in "Magento\Customer\Ui\Component\DataProvider\Document.php"
at $option = $attributeMetadata->getOptions()[$value];
The following was the piece of code with error:
/**
* Update customer gender value
* Method set gender label instead of id value
* @return void
*/
private function setGenderValue()
{
$value = $this->getData(self::$genderAttributeCode);
if (!$value) {
$this->setCustomAttribute(self::$genderAttributeCode, 'N/A');
return;
}
try {
$attributeMetadata = $this->customerMetadata->getAttributeMetadata(self::$genderAttributeCode);
$option = $attributeMetadata->getOptions()[$value];
$this->setCustomAttribute(self::$genderAttributeCode, $option->getLabel());
} catch (NoSuchEntityException $e) {
$this->setCustomAttribute(self::$genderAttributeCode, 'N/A');
}
}
The fixed code was :
/**
* Update customer gender value
* Method set gender label instead of id value
* @return void
*/
private function setGenderValue()
{
$value = $this->getData(self::$genderAttributeCode);
if (!$value) {
$this->setCustomAttribute(self::$genderAttributeCode, 'N/A');
return;
}
try {
$attributeMetadata = $this->customerMetadata->getAttributeMetadata(self::$genderAttributeCode);
foreach ($attributeMetadata->getOptions() as $option) {
if ($option->getValue() == $value) {
$this->setCustomAttribute(self::$genderAttributeCode, $option->getLabel());
break;
}
}
} catch (NoSuchEntityException $e) {
$this->setCustomAttribute(self::$genderAttributeCode, 'N/A');
}
}