[star3010]

Thanks for your reply.
May I know how to add following code in the product page 's header?

fbq('track', 'ViewContent', {
content_ids: ['1234'],
content_type: 'product',
value: 0.50,
currency: 'USD'
});

how to check it is product page?? sth like this {if $main eq "product"} ???