2Concept - User Experience Conceptualist - Prestashop Product JSONLD with HasVariants

Prestashop 8.2: Missing JSON-LD Support for Combination Products and How to Fix It

While working with Prestashop 8.2, I noticed an issue that can negatively impact SEO for stores using product combinations (variants such as size, color, etc.).

By default, Prestashop generates JSON-LD structured data for product pages, but combination products are not handled properly. The standard product-jsonld.tpl file does not provide sufficient structured data for variants, meaning Google often cannot generate rich snippets because the necessary information is simply missing.

This can result in:

Missing price information in search results
Missing availability data in Google
Reduced visibility in rich results
Lower click-through rates (CTR)

The issue originates from the product-jsonld.tpl template file. The default implementation does not properly describe the relationship between a parent product and its variants. Search engines expect variant information to be included through properties such as hasVariant, allowing them to understand that a product may exist in multiple versions with different prices, stock levels, SKUs, or attributes.

The fix is straightforward: replace or override the default product-jsonld.tpl file with a customized version that adds support for hasVariant. The modified file should be placed in your theme’s /templates/_partials/microdata directory.

It is a bigger change and can have a noticeable impact on how Google understands your products and whether rich snippets are generated for combination products.

After applying the change, I strongly recommend testing the output with Google’s structured data tools:

Copy to Clipboard

{**
 * Product JSON-LD incl. combinations
 * PrestaShop 8.2
 * Kombinationen + echte Variantenbilder
 *}
 
{assign var=hasAggregateRating value=false}

{if !empty($product.productComments.averageRating) && !empty($product.productComments.nbComments)}
    {assign var=hasAggregateRating value=true}
    {assign var=ratingValue value=$product.productComments.averageRating}
    {assign var=ratingReviewCount value=$product.productComments.nbComments}
{/if}

{if !empty($ratings.avg) && !empty($nbComments)}
    {assign var=hasAggregateRating value=true}
    {assign var=ratingValue value=$ratings.avg}
    {assign var=ratingReviewCount value=$nbComments}
{/if}

{assign var=hasWeight value=false}
{if isset($product.weight) && $product.weight != 0}
    {assign var=hasWeight value=true}
{/if}

{assign var=hasCombinations value=isset($combinations) && $combinations|count > 0}

"name":"{$product.name|escape:'html':'UTF-8'}",

"description":"{$page.meta.description|regex_replace:"/[\r\n]/":" "|escape:'html':'UTF-8'}",

{if !empty($product.cover)}
"image":"{$product.cover.bySize.large_default.url}",
{/if}

"category":"{$product.category_name|escape:'html':'UTF-8'}",

"sku":"{if $hasCombinations && isset($combinations[$product.id_product_attribute].reference)}{$combinations[$product.id_product_attribute].reference|escape:'html':'UTF-8'}{elseif $product.reference}{$product.reference|escape:'html':'UTF-8'}{else}{$product.id}{/if}",

"mpn":"{if $hasCombinations && isset($combinations[$product.id_product_attribute].mpn)}{$combinations[$product.id_product_attribute].mpn|escape:'html':'UTF-8'}{elseif $product.mpn}{$product.mpn|escape:'html':'UTF-8'}{elseif $product.reference}{$product.reference|escape:'html':'UTF-8'}{else}{$product.id}{/if}"

{if $product_manufacturer->name OR $shop.name},
"brand":{
    "@type":"Brand",
    "name":"{if $product_manufacturer->name}{$product_manufacturer->name|escape:'html':'UTF-8'}{else}{$shop.name|escape:'html':'UTF-8'}{/if}"
}
{/if}

{if $hasAggregateRating},
"aggregateRating":{
    "@type":"AggregateRating",
    "ratingValue":"{$ratingValue|round:1}",
    "reviewCount":"{$ratingReviewCount}"
}
{/if}

{if $hasWeight},
"weight":{
    "@type":"QuantitativeValue",
    "value":"{$product.weight}",
    "unitCode":"{$product.weight_unit}"
}
{/if}

,"offers":[

{foreach from=$combinations item=c name=comb_loop}

{if !$smarty.foreach.comb_loop.first},{/if}

{
    "@type":"Offer",

"name":"{$product.name|escape:'html':'UTF-8'}{if isset($c.attributes_values)}{foreach from=$c.attributes_values item=attr} - {$attr|escape:'html':'UTF-8'}{/foreach}{/if}",

"price":"{$c.price}",
    "priceCurrency":"{$currency.iso_code}",
	
    {assign var=comb_list value=$c.list|replace:"'":""|replace:",":"/"}
    "url":"{$product.canonical_url nofilter}#/{$comb_list}",
	
	
    "priceValidUntil":"{($smarty.now+(60*60*24*15))|date_format:'%Y-%m-%d'}",

"image":
    {if !empty($c.id_image)}
        "{$urls.shop_domain_url}/{$c.id_image}-large_default/{$product.link_rewrite}.jpg"
    {else}
        "{if !empty($product.cover)}{$product.cover.bySize.large_default.url}{/if}"
    {/if},

"sku":"{$c.reference|escape:'html':'UTF-8'}",

"mpn":"{if $c.mpn}{$c.mpn|escape:'html':'UTF-8'}{else}{$c.reference|escape:'html':'UTF-8'}{/if}"

{if !empty($c.ean13)},
    "gtin13":"{$c.ean13}"
    {/if},

"availability":"{if $c.quantity > 0}https://schema.org/InStock{else}https://schema.org/OutOfStock{/if}",

"seller":{
        "@type":"Organization",
        "name":"{$shop.name|escape:'html':'UTF-8'}"
    }
}

{/foreach}

]

}
</script>

Prestashop Product JSONLD with HasVariants

Prestashop 8.2: Missing JSON-LD Support for Combination Products and How to Fix It

Share This Story, Choose Your Platform!