Code Snippets don’t work.

Hello,

Thank you for your query and we are so sorry about the trouble this must have caused.

Please try the following code and see if this would work on your product schema since you are using ProductGroup property:

add_filter('rank_math/json_ld', function ($data, $jsonld) {
	if (empty($data['richSnippet']) || ! in_array($data['richSnippet']['@type'], ['Product', 'ProductGroup'])) {
		return $data;
	}

	$data['shippingDetails'] = [
		'@context'     => 'https://schema.org/',
		'@type'        => 'OfferShippingDetails',
		'@id'          => '#shipping_policy',
		'deliveryTime' => [
			'@type'        => 'ShippingDeliveryTime',
			'handlingTime' => [
				'@type'    => 'QuantitativeValue',
				'minValue' => 0,
				'maxValue' => 1,
				'unitCode' => 'DAY',
			],
			'transitTime' => [
				'@type'    => 'QuantitativeValue',
				'minValue' => 1,
				'maxValue' => 5,
				'unitCode' => 'DAY'
			],
		],
		'shippingRate' => [
			'@type'    => 'MonetaryAmount',
			'value'    => 500000,
			'currency' => 'IRR',
		],
		'shippingDestination' => [
			'@type' => 'DefinedRegion',
			'addressCountry' => 'IR'
		]
	];
	$data['hasMerchantReturnPolicy'] = [
		'@context'     => 'https://schema.org/',
		'@type'        => 'MerchantReturnPolicy',
		'@id'          => '#merchant_policy',
		'applicableCountry' => 'IR',
		'returnPolicyCategory' => 'https://schema.org/MerchantReturnFiniteReturnWindow',
		'merchantReturnDays' => 7,
		'returnMethod' => 'https://schema.org/ReturnByMail',
		'returnFees' => 'https://schema.org/FreeReturn'
	];
	if ('Product' ===  $data['richSnippet']['@type']) {
		$data['richSnippet']['offers']['shippingDetails'] = ['@id' => '#shipping_policy'];
		$data['richSnippet']['offers']['hasMerchantReturnPolicy'] = ['@id' => '#merchant_policy'];
		return $data;
	}

	if (empty($data['richSnippet']['hasVariant'])) {
		return $data;
	}

	foreach ($data['richSnippet']['hasVariant'] as $key => $value) {
		if (empty($value['offers'])) {
			continue;
		}

		$data['richSnippet']['hasVariant'][$key]['offers']['shippingDetails'] = ['@id' => '#shipping_policy'];
		$data['richSnippet']['hasVariant'][$key]['offers']['hasMerchantReturnPolicy'] = ['@id' => '#merchant_policy'];
	}

	return $data;
}, 99, 2);

Let us know how that goes. Looking forward to helping you.

Hello,

We would like to test this further on your website but we no longer have access to your dashboard as the username is not working.

Can you please verify this from your end?

In the meantime, please replace all the codes with this instead:

add_filter('rank_math/json_ld', function ($data, $jsonld) {
	if (empty($data['richSnippet']) || ! in_array($data['richSnippet']['@type'], ['Product', 'ProductGroup'])) {
		return $data;
	}

	$data['shippingDetails'] = [
		'@context'     => 'https://schema.org/',
		'@type'        => 'OfferShippingDetails',
		'@id'          => '#shipping_policy',
		'deliveryTime' => [
			'@type'        => 'ShippingDeliveryTime',
			'handlingTime' => [
				'@type'    => 'QuantitativeValue',
				'minValue' => 0,
				'maxValue' => 1,
				'unitCode' => 'DAY',
			],
			'transitTime' => [
				'@type'    => 'QuantitativeValue',
				'minValue' => 1,
				'maxValue' => 5,
				'unitCode' => 'DAY'
			],
		],
		'shippingRate' => [
			'@type'    => 'MonetaryAmount',
			'value'    => 500000,
			'currency' => 'IRR',
		],
		'shippingDestination' => [
			'@type' => 'DefinedRegion',
			'addressCountry' => 'IR'
		]
	];
	$data['hasMerchantReturnPolicy'] = [
		'@context'     => 'https://schema.org/',
		'@type'        => 'MerchantReturnPolicy',
		'@id'          => '#merchant_policy',
		'applicableCountry' => 'IR',
		'returnPolicyCategory' => 'https://schema.org/MerchantReturnFiniteReturnWindow',
		'merchantReturnDays' => 7,
		'returnMethod' => 'https://schema.org/ReturnByMail',
		'returnFees' => 'https://schema.org/FreeReturn'
	];
	if ('Product' ===  $data['richSnippet']['@type']) {
		$data['richSnippet']['offers']['shippingDetails'] = ['@id' => '#shipping_policy'];
		$data['richSnippet']['offers']['hasMerchantReturnPolicy'] = ['@id' => '#merchant_policy'];
		return $data;
	}

	if (empty($data['richSnippet']['hasVariant'])) {
		return $data;
	}

	foreach ($data['richSnippet']['hasVariant'] as $key => $value) {
		if (empty($value['offers'])) {
			continue;
		}

		$data['richSnippet']['hasVariant'][$key]['offers']['shippingDetails'] = ['@id' => '#shipping_policy'];
		$data['richSnippet']['hasVariant'][$key]['offers']['hasMerchantReturnPolicy'] = ['@id' => '#merchant_policy'];
		$data['richSnippet']['hasVariant'][$key]['offers']['priceCurrency'] = 'IRT';
	}

	return $data;
}, 99, 2);

Looking forward to helping you.