Upc and mpn????

HI there
Just wanted to ask about the UPC and MPN, what alternate do we have if these numbers are not available or is it good practice to leave them black if not available. Thanks in advance for your help.

asked about 1 month ago

1 Comment

giftschoponline February 18, 2019


4 Answers

Internet searches and google product searches for the same items is a good place to find upc….I usually find them in google product searches..

There are also several upc data bases on line in which you can search for upc’s also

if the items are not new, handmade or are older than when upc existed..then you can leave it blank and [[identifier_exists:false]] will be inserted into your feed automatically for any of the missing three attributes required by google.

answered about 1 month ago

1 Comment

giftschoponline February 18, 2019



Ah, the age old question again about Google REQUIRING a UPC and MPN
(Because everything Google has a UPC and ALWAYS DID).

First off, don’t leave them blank. Google don’t like that.

Unless things have changed, I was instructed to put the following into both the UPC and MPN field if it does not have anything.


Just the way is is spelled above with the underscore between the 2 words.
(While this makes NO sense to me, neither does Google logic).

answered about 1 month ago

1 Comment

giftschoponline February 18, 2019



I am the manufacturer of my handmade items so I create my own MPN. As for UPC, I had been told to use [[identifier_exists:false]]. I have been leaving it blank because I forget to use it. Don’t know if it makes a difference or not. Can someone please advise me on this? Thanks.

answered about 1 month ago


BookbinEtc February 18, 2019

Margie, if you leave it bland, the attribute you mentioned will be added by Bonanza automatically..

giftschoponline February 18, 2019



I use upcitemdb.com/upc or barcodelookup.com to find the UPC for many items…
Very helpful sites…

hope this info helps…

answered 22 days ago

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