diff --git a/src/controllers/api/upgradesController.ts b/src/controllers/api/upgradesController.ts
index efd33917..1b18511f 100644
--- a/src/controllers/api/upgradesController.ts
+++ b/src/controllers/api/upgradesController.ts
@@ -10,7 +10,10 @@ export const upgradesController: RequestHandler = async (req, res) => {
     const inventory = await getInventory(accountId);
     const InventoryChanges: any = {};
     for (const operation of payload.Operations) {
-        if (operation.UpgradeRequirement == "/Lotus/Types/Items/MiscItems/ModSlotUnlocker") {
+        if (
+            operation.UpgradeRequirement == "/Lotus/Types/Items/MiscItems/ModSlotUnlocker" ||
+            operation.UpgradeRequirement == "/Lotus/Types/Items/MiscItems/CustomizationSlotUnlocker"
+        ) {
             updateCurrency(10, true, accountId);
         } else {
             addMiscItems(inventory, [
@@ -83,6 +86,21 @@ export const upgradesController: RequestHandler = async (req, res) => {
                     }
                 }
                 break;
+            case "/Lotus/Types/Items/MiscItems/CustomizationSlotUnlocker":
+                for (const item of inventory[payload.ItemCategory as TGenericItemKey] as IGenericItemDatabase[]) {
+                    if (item._id.toString() == payload.ItemId.$oid) {
+                        item.CustomizationSlotPurchases ??= 0;
+                        item.CustomizationSlotPurchases += 1;
+                        InventoryChanges[payload.ItemCategory] = {
+                            ItemId: {
+                                $oid: payload.ItemId.$oid
+                            },
+                            CustomizationSlotPurchases: item.CustomizationSlotPurchases
+                        };
+                        break;
+                    }
+                }
+                break;
             default:
                 throw new Error("Unsupported upgrade: " + operation.UpgradeRequirement);
         }
diff --git a/src/models/inventoryModels/inventoryModel.ts b/src/models/inventoryModels/inventoryModel.ts
index 43f15819..fdb3a636 100644
--- a/src/models/inventoryModels/inventoryModel.ts
+++ b/src/models/inventoryModels/inventoryModel.ts
@@ -193,6 +193,7 @@ const WeaponSchema = new Schema<IWeaponDatabase>(
         Polarity: [polaritySchema],
         FocusLens: String,
         ModSlotPurchases: Number,
+        CustomizationSlotPurchases: Number,
         UpgradeType: Schema.Types.Mixed, //todo
         UpgradeFingerprint: String,
         ItemName: String,
@@ -275,6 +276,7 @@ const suitSchema = new Schema<ISuitDatabase>(
         Polarity: [polaritySchema],
         Polarized: Number,
         ModSlotPurchases: Number,
+        CustomizationSlotPurchases: Number,
         FocusLens: String,
         UnlockLevel: Number
     },
diff --git a/src/types/inventoryTypes/SuitTypes.ts b/src/types/inventoryTypes/SuitTypes.ts
index 22b543a8..8fe48081 100644
--- a/src/types/inventoryTypes/SuitTypes.ts
+++ b/src/types/inventoryTypes/SuitTypes.ts
@@ -17,6 +17,7 @@ export interface ISuitDatabase {
     Polarity?: IPolarity[];
     Polarized?: number;
     ModSlotPurchases?: number;
+    CustomizationSlotPurchases?: number;
     FocusLens?: string;
     UnlockLevel?: number;
     _id: Types.ObjectId;
diff --git a/src/types/inventoryTypes/inventoryTypes.ts b/src/types/inventoryTypes/inventoryTypes.ts
index 6d9ce1ca..8bf01538 100644
--- a/src/types/inventoryTypes/inventoryTypes.ts
+++ b/src/types/inventoryTypes/inventoryTypes.ts
@@ -95,6 +95,7 @@ export interface IGenericItem {
     Polarity?: IPolarity[];
     Polarized?: number;
     ModSlotPurchases?: number;
+    CustomizationSlotPurchases?: number;
 }
 
 export interface IGenericItemDatabase extends Omit<IGenericItem, "ItemId"> {
diff --git a/src/types/inventoryTypes/weaponTypes.ts b/src/types/inventoryTypes/weaponTypes.ts
index 7cc390f3..46d11d01 100644
--- a/src/types/inventoryTypes/weaponTypes.ts
+++ b/src/types/inventoryTypes/weaponTypes.ts
@@ -17,6 +17,7 @@ export interface IWeaponDatabase {
     Polarity?: IPolarity[];
     FocusLens?: string;
     ModSlotPurchases?: number;
+    CustomizationSlotPurchases?: number;
     UpgradeType?: string;
     UpgradeFingerprint?: string;
     ItemName?: string;