Google has up to date its product structured information doc to specify that the GTIN worth should be introduced is in numerical type. Google stated it doesn’t assist the URL type for GTINs.
You’ll be able to see the replace on this location of this Google assist doc the place Google added “Ensure that the GTIN worth is within the numerical type; we do not assist the URL type for GTINs.” That line was beforehand not there, as you possibly can see from the Wayback Machine archive.
Naomi Gallula notified me of this on Twitter and stated that Google now solely helps the numerical worth regardless of Schema.org saying GS1 digital hyperlink is okay. Right here is her tweet:
🚨 Google made an replace on the Product structured information documentation- For GTIN, Google solely helps the numerical type of the GTIN and never the GS1 digital hyperlink as laid out in https://t.co/5qDnTnhDJd.
FYI- @rustybrick pic.twitter.com/EHPOxqzt7G— Naomi Gallula (@naomig84) August 8, 2022
So maintain this in thoughts when implementing GTINs, which is vital for product search in Google.
Discussion board dialogue at Twitter.