Primitive+ does not alter the master item list. Because of that, you have to use the cheat giveitem command vs. cheat giveitemnum . Also, instead of using a number, you substitute it with the location to the item. Below are all the items / locations

Example cheat giveitem "Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/Seeds/PrimalItemConsumable_Seed_Barley.PrimalItemConsumable_Seed_Barley'" 1 0 false

Barley Seed
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/Seeds/PrimalItemConsumable_Seed_Barley.PrimalItemConsumable_Seed_Barley'

Barley
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemResource_Barley.PrimalItemResource_Barley'

Breadfruit Seed
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/Seeds/PrimalItemConsumable_Seed_Breadfruit.PrimalItemConsumable_Seed_Breadfruit'

Breadfruit
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemConsumable_Veggie_Breadfruit.PrimalItemConsumable_Veggie_Breadfruit'

Coffee Seed
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/Seeds/PrimalItemConsumable_Seed_Coffee.PrimalItemConsumable_Seed_Coffee'

Coffee
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/Seeds/PrimalItemConsumable_Veggie_Coffee.PrimalItemConsumable_Veggie_Coffee'

Grape Seed
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/Seeds/PrimalItemConsumable_Seed_Grape.PrimalItemConsumable_Seed_Grape'

Grape
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/Seeds/PrimalItemConsumable_Veggie_Grape.PrimalItemConsumable_Veggie_Grape'

Rubber Seed
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/Seeds/PrimalItemConsumable_Seed_Rubber.PrimalItemConsumable_Seed_Rubber'

Rubber
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemResource_Rubber.PrimalItemResource_Rubber'

Sugar Seed
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/Seeds/PrimalItemConsumable_Seed_Sugar.PrimalItemConsumable_Seed_Sugar'

Sugar Juice
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemResource_SugarJuice.PrimalItemResource_SugarJuice'

Tea Seed
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/Seeds/PrimalItemConsumable_Seed_Tea.PrimalItemConsumable_Seed_Tea'

Tea
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/Seeds/PrimalItemConsumable_Veggie_Tea.PrimalItemConsumable_Veggie_Tea'

Tobacco Seed
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/Seeds/PrimalItemConsumable_Seed_Tobacco.PrimalItemConsumable_Seed_Tobacco'

Fresh Tobacco
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/Seeds/PrimalItemConsumable_Veggie_Tobacco.PrimalItemConsumable_Veggie_Tobacco'

Dried Tobacco
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/Seeds/PrimalItemConsumable_Veggie_DriedTobacco.PrimalItemConsumable_Veggie_DriedTobacco'

Wheat Seed
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/Seeds/PrimalItemConsumable_Seed_Wheat.PrimalItemConsumable_Seed_Wheat'

Fresh Wheat
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/Seeds/PrimalItemConsumable_Veggie_Wheat.PrimalItemConsumable_Veggie_Wheat'

Dried Wheat
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/Seeds/PrimalItemConsumable_Veggie_DriedWheat.PrimalItemConsumable_Veggie_DriedWheat'

Wooden Club
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItem_WeaponWoodenClub.PrimalItem_WeaponWoodenClub'

Hunting Knife
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItem_WeaponStoneHuntingKnife.PrimalItem_WeaponStoneHuntingKnife'

Machete
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItem_WeaponMetalMachete.PrimalItem_WeaponMetalMachete'

Hammer
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItem_WeaponMetalHammer.PrimalItem_WeaponMetalHammer'

Obsi Spear
Blueprint'/Game/Mods/PrimitivePlus/ModifiedOriginals/Items/PrimalItem_WeaponObsidianSpear.PrimalItem_WeaponObsidianSpear'

Flintlock Pistol
Blueprint'/Game/Mods/PrimitivePlus/ModifiedOriginals/Items/PrimalItem_WeaponPrimitivePistol.PrimalItem_WeaponPrimitivePistol'

Musket
Blueprint'/Game/Mods/PrimitivePlus/ModifiedOriginals/Items/PrimalItem_WeaponPrimitiveRifle.PrimalItem_WeaponPrimitiveRifle'

Flaming Arrow
Blueprint'/Game/Mods/PrimitivePlus/ModifiedOriginals/Items/PrimalItemAmmo_ArrowFlaming.PrimalItemAmmo_ArrowFlaming'

Obsi Arrow
Blueprint'/Game/Mods/PrimitivePlus/ModifiedOriginals/Items/PrimalItemAmmo_ArrowObsi.PrimalItemAmmo_ArrowObsi'

Bonemeal[/b]
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemConsumable_Fertilizer_Bonemeal.PrimalItemConsumable_Fertilizer_Bonemeal'

Claystone
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemResource_Claystone.PrimalItemResource_Claystone'

Clay
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemResource_Clay.PrimalItemResource_Clay'

Limestone
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemResource_Limestone.PrimalItemResource_Limestone'

Brick
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemResource_Brick.PrimalItemResource_Brick'

Leather
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemResource_Leather.PrimalItemResource_Leather'

Latex
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemResource_Latex.PrimalItemResource_Latex'

Yeast
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemResource_Yeast.PrimalItemResource_Yeast'

Wood Plank
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemResource_WoodPlank.PrimalItemResource_WoodPlank'

Sugar
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemResource_Sugar.PrimalItemResource_Sugar'

Salt
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemResource_Salt.PrimalItemResource_Salt'

Flour
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemResource_Flour.PrimalItemResource_Flour'

Rubber
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemResource_Rubber.PrimalItemResource_Rubber'

Oil (Seed)
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemResource_ProcessedOil_Seed.PrimalItemResource_ProcessedOil_Seed'

Oil (Animal)
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemResource_ProcessedOil_Animal.PrimalItemResource_ProcessedOil_Animal'

Malt
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemResource_Malt.PrimalItemResource_Malt'

Bread Loaf
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemConsumable_BreadLoaf.PrimalItemConsumable_BreadLoaf'

Cigarette
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemConsumable_Cigarette.PrimalItemConsumable_Cigarette'

Beer
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemConsumable_Drink_Beer.PrimalItemConsumable_Drink_Beer'

Wine
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemConsumable_Drink_Wine.PrimalItemConsumable_Drink_Wine'

Coffee Drink
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemConsumable_Soup_CoffeeDrink.PrimalItemConsumable_Soup_CoffeeDrink'

Tea Drink
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemConsumable_Soup_TeaDrink.PrimalItemConsumable_Soup_TeaDrink'

Dough
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemResource_Dough.PrimalItemResource_Dough'

Cooked Bacon
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Consumables/PrimalItemConsumable_CookedBacon.PrimalItemConsumable_CookedBacon'

Cured Bacon
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Consumables/PrimalItemConsumable_CuredBacon.PrimalItemConsumable_CuredBacon'

Animal Fat
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Consumables/PrimalItemConsumable_FreshAnimalFat.PrimalItemConsumable_FreshAnimalFat'

Fresh Bacon
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Consumables/PrimalItemConsumable_FreshBacon.PrimalItemConsumable_FreshBacon'

Fresh Ribs
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Consumables/PrimalItemConsumable_FreshRibs.PrimalItemConsumable_FreshRibs'

Armaberry Preserves
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Consumables/PrimalItemConsumable_Preserves_Armarberry.PrimalItemConsumable_Preserves_Armarberry'

Azulberry Preserves
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Consumables/PrimalItemConsumable_Preserves_Azulberry.PrimalItemConsumable_Preserves_Azulberry'

Mejoberry Preserves
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Consumables/PrimalItemConsumable_Preserves_Mejoberry.PrimalItemConsumable_Preserves_Mejoberry'

Tintoberry Preserves
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Consumables/PrimalItemConsumable_Preserves_Tintoberry.PrimalItemConsumable_Preserves_Tintoberry'

Water Well[/b]
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_WaterWell.PrimalItemStructure_WaterWell'

Teepee
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_Teepee.PrimalItemStructure_Teepee'

Tanning Rack
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_TanningRack.PrimalItemStructure_TanningRack'

Chair
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_Chair.PrimalItemStructure_Chair'

Table (1)
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_Table.PrimalItemStructure_Table'

Table (2)
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_Table2.PrimalItemStructure_Table2'

Cabinet (1)
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_Cabinent.PrimalItemStructure_Cabinent'

Cabinet (2)
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_Cabinent2.PrimalItemStructure_Cabinent2'

Sugarpress
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_Sugarpress.PrimalItemStructure_Sugarpress'

Wood Storage Shed
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_StorageShed_Wood.PrimalItemStructure_StorageShed_Wood'

Stone Safe
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_StorageBox_Safe.PrimalItemStructure_StorageBox_Safe'

Stairs (1)
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_Stairs.PrimalItemStructure_Stairs'

Stairs (2)
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_Stairs2.PrimalItemStructure_Stairs2'

Preserving Campfire
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_SmokePreservervingHut.PrimalItemStructure_SmokePreservervingHut'

Shelf (1)
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_Shelf.PrimalItemStructure_Shelf'

Shelf (2)
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_Shelf2.PrimalItemStructure_Shelf2'

Grill
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_PrimitiveGrill.PrimalItemStructure_PrimitiveGrill'

Preserving Shed
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_PreservingShed.PrimalItemStructure_PreservingShed'

Miners Cart
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_MinersCart.PrimalItemStructure_MinersCart'

Mailbox
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_Mailbox.PrimalItemStructure_Mailbox'

Handmill
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_Handmill.PrimalItemStructure_Handmill'

Fireplace
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_Fireplace.PrimalItemStructure_Fireplace'

Fence
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_Fence.PrimalItemStructure_Fence'

Blacksmith Table
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_BlacksmithTable.PrimalItemStructure_BlacksmithTable'

Construction Table
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_ConstructionTable.PrimalItemStructure_ConstructionTable'

Cauldron
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_Cauldron.PrimalItemStructure_Cauldron'

Bonfire
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_Bonfire.PrimalItemStructure_Bonfire'

Fermenting Barrel
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_BarrelFermenting.PrimalItemStructure_BarrelFermenting'

Barrel
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_Barrel_Normal.PrimalItemStructure_Barrel_Normal'

Cooking Table
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_BakingStation.PrimalItemStructure_BakingStation'

Baking Oven
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_BakersOven.PrimalItemStructure_BakersOven'

Brick Ceiling
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_BrickCeiling.PrimalItemStructure_BrickCeiling'
Brick Foundation
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_BrickFloor.PrimalItemStructure_BrickFloor'
Brick Roof
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_BrickRoof.PrimalItemStructure_BrickRoof'
Brick Wall
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_BrickWall.PrimalItemStructure_BrickWall'
Brick Sloped (Left)
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_BrickWall_Sloped_Left.PrimalItemStructure_BrickWall_Sloped_Left'
Brick Sloped (Right)
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_BrickWall_Sloped_Right.PrimalItemStructure_BrickWall_Sloped_Right'
Brick Doorframe
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_BrickWallWithDoor.PrimalItemStructure_BrickWallWithDoor'
Brick Windowframe
Blueprint'/Game/Mods/PrimitivePlus/CustomItems/Items/PrimalItemStructure_BrickWallWithWindow.PrimalItemStructure_BrickWallWithWindow'