diff --git a/src/services/inventoryService.ts b/src/services/inventoryService.ts
index 5becaf85..ad12c4a7 100644
--- a/src/services/inventoryService.ts
+++ b/src/services/inventoryService.ts
@@ -2,10 +2,11 @@ import { Inventory } from "@/src/models/inventoryModel";
 import new_inventory from "@/static/fixed_responses/postTutorialInventory.json";
 import config from "@/config.json";
 import { Types } from "mongoose";
-import { ISuitDatabase, ISuitResponse } from "@/src/types/inventoryTypes/SuitTypes";
+import { ISuitResponse } from "@/src/types/inventoryTypes/SuitTypes";
 import { SlotType } from "@/src/types/purchaseTypes";
-import { IWeaponDatabase, IWeaponResponse } from "@/src/types/inventoryTypes/weaponTypes";
-import { FlavourItem, RawUpgrade, MiscItem } from "@/src/types/inventoryTypes/inventoryTypes";
+import { IWeaponResponse } from "@/src/types/inventoryTypes/weaponTypes";
+import { FlavourItem } from "@/src/types/inventoryTypes/inventoryTypes";
+import { MissionInventoryUpdate, MissionInventoryUpdateCard, MissionInventoryUpdateGear, MissionInventoryUpdateItem } from "../types/missionInventoryUpdateType";
 
 const createInventory = async (accountOwnerId: Types.ObjectId) => {
     try {
@@ -106,30 +107,35 @@ export const addCustomization = async (customizatonName: string, accountId: stri
     return changedInventory.FlavourItems[flavourItemIndex].toJSON(); //mongoose bug forces as FlavourItem
 };
 
-export const missionInventoryUpdate = async (data: any, accountId: string): Promise<void> => { // TODO - add data type
+export const missionInventoryUpdate = async (data: MissionInventoryUpdate, accountId: string): Promise<void> => {
     const { RawUpgrades, MiscItems, Suits, Pistols, LongGuns, Melee, RegularCredits } = data;
     const inventory = await getInventory(accountId);
 
-    const addGearExpByCategory = (gearArray: (ISuitDatabase|IWeaponDatabase)[], category: 'Pistols'|'LongGuns'|'Melee'|'Suits') => {
-        gearArray?.forEach(({ ItemId, XP }: any) => {
-            const itemIndex = inventory[category].findIndex(i => i._id?.equals(ItemId.$oid));
-            if (itemIndex !== -1) {
-                inventory[category][itemIndex].XP += XP;
-                inventory.markModified(`${category}.${itemIndex}.XP`);
+    const addGearExpByCategory = (gearArray: MissionInventoryUpdateGear[] | undefined, categoryName: 'Pistols'|'LongGuns'|'Melee'|'Suits') => {
+        const category = inventory[categoryName];
+
+        gearArray?.forEach(({ ItemId, XP }) => {
+            const itemIndex = category.findIndex(i => i._id?.equals(ItemId.$oid));
+            const item = category[itemIndex];
+
+            if (itemIndex !== -1 && item.XP!=undefined) {
+                item.XP += XP;
+                inventory.markModified(`${categoryName}.${itemIndex}.XP`);
             }
         });
     };
 
-    const addItemsByCategory = (itemsArray: (RawUpgrade | MiscItem)[], category: 'RawUpgrades'|'MiscItems') => {
-        itemsArray?.forEach(item => {
-            const { ItemCount, ItemType } = item;
-            const existingItemIndex = inventory[category].findIndex(i => i.ItemType === ItemType);
+    const addItemsByCategory = (itemsArray: (MissionInventoryUpdateItem | MissionInventoryUpdateCard)[] | undefined, categoryName: 'RawUpgrades'|'MiscItems') => {
+        const category = inventory[categoryName];
+        
+        itemsArray?.forEach(({ ItemCount, ItemType }) => {
+            const itemIndex = category.findIndex(i => i.ItemType === ItemType);
 
-            if (existingItemIndex !== -1) {
-                inventory[category][existingItemIndex].ItemCount += ItemCount;
-                inventory.markModified(category + '.' + existingItemIndex + '.ItemCount');
+            if (itemIndex !== -1) {
+                category[itemIndex].ItemCount += ItemCount;
+                inventory.markModified(`${categoryName}.${itemIndex}.ItemCount`);
             } else {
-                inventory[category].push({ ItemCount, ItemType });
+                category.push({ ItemCount, ItemType });
             }
         });
     };
@@ -142,6 +148,8 @@ export const missionInventoryUpdate = async (data: any, accountId: string): Prom
     addItemsByCategory(RawUpgrades, 'RawUpgrades'); // TODO - check mods fusion level
     addItemsByCategory(MiscItems, 'MiscItems');
 
+    // TODO - save ChallengeProgress (idk where to save)
+
     await inventory.save();
 };
 
diff --git a/src/types/missionInventoryUpdateType.ts b/src/types/missionInventoryUpdateType.ts
new file mode 100644
index 00000000..dcc88da0
--- /dev/null
+++ b/src/types/missionInventoryUpdateType.ts
@@ -0,0 +1,64 @@
+interface MongooseId{
+    $oid: string;
+}
+
+interface ExpireDate{
+    $date: {
+        $numberLong: string;
+    }
+}
+
+export interface MissionInventoryUpdateGear{
+    ItemType: string;
+    ItemName: string;
+    ItemId: MongooseId;
+    XP: number;
+    UpgradeVer: number;
+    Features: number;
+    Polarized: number;
+    CustomizationSlotPurchases: number;
+    ModSlotPurchases: number;
+    FocusLens: string;
+    Expiry: ExpireDate;
+    Polarity: any[];
+    Configs: any[];
+    ModularParts: any[];
+    SkillTree: string;
+    UpgradeType: string;
+    UpgradeFingerprint: string;
+    OffensiveUpgrade: string;
+    DefensiveUpgrade: string;
+    UpgradesExpiry: ExpireDate;
+    ArchonCrystalUpgrades: any[];
+}
+
+export interface MissionInventoryUpdateItem{
+    ItemCount: number;
+    ItemType: string;
+}
+
+export interface MissionInventoryUpdateCard extends MissionInventoryUpdateItem{
+    ItemId: MongooseId;
+    UpgradeFingerprint: string;
+    PendingRerollFingerprint: string;
+    LastAdded: MongooseId;
+}
+
+interface MissionInventoryUpdateChallange{
+    Name: string;
+    Progress: number;
+    Completed: any[];
+}
+
+export interface MissionInventoryUpdate{
+    rewardsMultiplier?: number;
+    ActiveBoosters?: any[];
+    LongGuns?: MissionInventoryUpdateGear[];
+    Pistols?: MissionInventoryUpdateGear[];
+    Suits?: MissionInventoryUpdateGear[];
+    Melee?: MissionInventoryUpdateGear[];
+    RawUpgrades?: MissionInventoryUpdateCard[];
+    MiscItems?: MissionInventoryUpdateItem[];
+    RegularCredits?: number;
+    ChallengeProgress?: MissionInventoryUpdateChallange[];
+}
\ No newline at end of file