PageProductsCartTransactions
page.pageinfo.pageIDproduct[n].productinfo.productIDcart.cartIDtransaction.transactionID
page.pageinfo.pageNameproduct[n].productinfo.productNamecart.price.basePricetransaction.total.basePrice
page.pageinfo.versionproduct[n].productinfo.descriptioncart.price.voucherCodetransaction.total.voucherCode
page.pageinfo.sys.Envproduct[n].productinfo.manufacturercart.price.voucherDiscounttransaction.total.voucherDiscount
page.pageinfo.breadCrumbsproduct[n].productinfo.sizecart.price.currencytransaction.total.currency
page.pageinfo.variantproduct[n].productinfo.productImagecart.price.taxRatetransaction.total.taxRate
page.pageinfo.destinationURLproduct[n].productinfo.productThumbnailcart.price.shippingtransaction.total.shipping
page.pageinfo.referringURLproduct[n].productinfo.productURLcart.price.shippingMethodtransaction.total.shippingMethod
page.pageinfo.onsiteSearchTermproduct[n].category.primaryCategorycart.price.priceWithTaxtransaction.total.priceWithTax
page.pageinfo.onsiteSearchResultproduct[n].category.subCategory1cart.price.cartTotaltransaction.total.transactionTotal
page.pageinfo.languageproduct[n].category.productTypecart.attributes.isProductBundletransaction.attributes.paymentMethod
page.pageinfo.countryproduct[n].attributes.productSeasonComponent(Widgets)transaction.item[n].productInfo.productID
page.pageinfo.geoRegionproduct[n].linkedProduct[n].productInfocomponent[n].attributes.socialWidgettransaction.item[n].productInfo.productName
page.pageinfo.issueDateEventsUser(Profile & Segments)transaction.item[n].productInfo.description
page.pageinfo.effectiveDateevent[n].eventInfo.eventNameuser.profile.profileInfo.profileIDtransaction.item[n].productInfo.manufacturer
page.pageinfo.expiryDateevent[n].category.primaryCategoryuser.profile.profileInfo.userName*transaction.item[n].category
page.pageinfo.authorevent[n].eventInfo.eventActionuser.profile.address*transaction.item[n].price
page.pageinfo.publisherevent[n].eventInfo.typeuser.profile.social.facebook*transaction.item[n].quantity
page.pageinfo.industryCodesevent[n].eventInfo.eventPointsuser.profile.social.facebookInfotransaction.item[n].linkedProduct[n].productInfo
page.pageinfo.primaryCategoryevent[n].eventInfo.timeStampuser.profile.social.twitter*Transactions (Billing Address)
page.pageinfo.subCategory1event[n].eventInfo.effectuser.profile.social.twitterInfotransaction.profile.address.line1*
page.pageinfo.pageTypeevent[n].category.subCategory1user.segment.isNewRegistrationtransaction.profile.address.line2
page.pageinfo.numberOfCommentsevent[n].attributes.nonInteractiveuser.segment.isUserNewCustomertransaction.profile.address.city
Version & EnvironmentSecurity & Privacyuser.segment.isLoggedIntransaction.profile.address.stateProvince
version: (1.0)cat1.cat2.cat3.security.variableNameuser.segment.customerClassDimensiontransaction.profile.address.country
pageInstanceID:(dev | staging | live)privacyaccessCategories[n].domainsuser.segment.visitorLifetimeValuetransaction.profile.address.postalCode*

Other cheat sheets:

GTM DataLayer cheat sheet (enhanced ecommerce version)

GTM DataLayer cheat sheet (app version)

0117 3361103