Google has up to date its product structured knowledge doc to specify that the GTIN worth should be introduced is in numerical kind. Google mentioned it doesn’t assist the URL kind for GTINs.

You may see the replace on this location of this Google assist doc the place Google added “Make sure that the GTIN worth is within the numerical kind; we do not assist the URL kind 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 mentioned 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 knowledge 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.