Collect attribute using JSON-LD

Hello,

Thank you for contacting Rank Math and sorry for any inconvenience that might have been caused due to that.

I recommend using this filter instead and then write some logic to grab the created attribute from the current product in the loop:

/**
 * Filter to add Brand Name for Products.
 *
 * @param array $entity Snippet Data
 * @return array
 */
add_filter( 'rank_math/snippet/rich_snippet_product_entity', function( $entity ) {
    $entity['mpn'] = '';
    return $entity;
});

I hope this info helps. Thank you.

​​​​​​​

Hi Paul,

Yes we would be happy to help.
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We really look forward to helping you.

Hi there,

Thanks for getting back to us.

The custom attribute is already added to the product schema as the brand as shown below:

I don’t think that it is necessary to add some additional code.

Thank you.

Hi Paul,

Apologies for that. I have added this code to your theme to grab the custom MPN number and add it to the product schema:

/**
 * Filter to add custom MPN number for Products.
 *
 * @param array $entity Snippet Data
 * @return array
 */
add_filter( 'rank_math/snippet/rich_snippet_product_entity', function( $entity ) {
    if ( is_singular( 'product' ) ) {
		
	    $entity['mpn'] = get_post_meta( get_the_ID(), '_mpn', true );
		
	}
	return $entity;
});

I hope this info helps. Thank you.

Hello,

We are super happy that this resolved your issue. If you have any other questions in the future, know that we are here to help you.

If you don’t mind me asking, could you please leave us a review (if you haven’t already) on https://wordpress.org/support/plugin/seo-by-rank-math/reviews/?rate=5#new-post about your overall experience with Rank Math? We appreciate your time and patience.

If you do have another question in the future, please feel free to create a new forum topic, and it will be our pleasure to assist you again.

Thank you.