AdWords is now Google Ads. Our new name reflects the full range of advertising options we offer across Search, Display, YouTube, and more. Learn more

3.9K members online now
3.9K members online now
For questions related to Google Shopping and Merchant Center. Learn to optimize your Shopping ads
Guide Me

Item Group ID - Rules for using FALSE

Visitor ✭ ✭ ✭
# 1
Visitor ✭ ✭ ✭

I am trying to set up a product feed for a client who sells a unique format of alcoholic beverage. Basically, they partner with a number of different alcohol manufacturers to sell gift packs which feature unique containers of 3 - 5 different drinks (these combinations are pre-determined, and there are 11 pack options overall). Unfortunately, they don't have GTINs or MPNs for any of the gift packs. 

My intention was to set the Item Group ID to FALSE, which I understand is the only way to circumvent the need for these variables, but since the products are not technically handmade or made-to-order, is this a usage violation? 

If so, are there any work-around options?

1 Expert replyverified_user

Re: Item Group ID - Rules for using FALSE

[ Edited ]
Top Contributor
# 2
Top Contributor

a multi-item bundled-offer with a main item
has very specific rules that must be followed:


(1) the is_bundle attribute must be submitted and set TRUE


(2) all attributes submitted must be based on the main item in the bundle;


for example, global-trade-data (mpn, brand, gtin) must be submitted
for the primary item that is contained within the bundle of items.


identifier_exists FALSE is (only) allowed if the offer
being submitted does not have any global-trade-data.


identifier_exists FALSE for a bundled-offer with multiple items,
is (only) allowed if the main item in the bundle does not have
any global-trade-data, as assigned by the manufacturer, or there
is no main item in the bundled-offer -- in which case, is_bundle
must be submitted as FALSE or not submitted.


if identifier_exists FALSE then, global-trade-data --
brand, mpn, gtin -- cannot be submitted, at all, for
that (bundled) item-offer.


identifier_exists may indicate no global-trade-data exists -- not item_group_id


item_group_id relates to variants and has nothing whatever

to do with the global-trade-data or identifier_exists attributes.


a supported-variant is the same item that comes in different
sizes, colors, patterns, or materials; like a shoe or iphone
or the same wine that is sold in 9 liter or 15 liter bottles --
not for bundled-offers nor multipack-offers.


item_group_id is typically assigned a parent-sku,

for each physical variant-offer submitted, to tag

all variant-items within a group -- not true or false.


see also

Item Group ID - Rules for using FALSE

Visitor ✭ ✭ ✭
# 3
Visitor ✭ ✭ ✭

Thanks @Celebird


Is it technically classed as a bundle, though, since all the products are the same, just with different flavours inside the packaging? Would that not make it a multipack, rather than a bundle?


There is also no main item, for this reason - and none of the items have any global-trade-data. Am I therefore right in assuming that it would be OK to put identifier_exists as FALSE?


Sorry, I am new to Google Shopping and still getting used to the terminology; I did, of course, mean identifier_exists, not item_group_id!


Re: Item Group ID - Rules for using FALSE

Top Contributor
# 4
Top Contributor

first, you're welcome.


(a) no -- a multipack requires a number of entirely identical items.


(b) if there is no main item and the merchant is creating the multi-item-offer
not the manufacturer, or the manufacturer is creating the offer but has not
assigned any global-trade-data, then yes -- simply submit identifier_exists
with a value of FALSE and then, do not submit any brand, do not submit

any mpn, and do not submit any gtin, for that offer.


(c) multipack and bundle cannot be used unless

the multi-item-offer meets google's strict definitions --

then, global-trade-data are bound by those rules.


global-trade-data (brand, mpn, gtin) are mainly legal designations
that can be assigned only by the manufacturer -- not merchants.


see also