diff --git a/src/models/inboxModel.ts b/src/models/inboxModel.ts
index c451d18a..c7c5e563 100644
--- a/src/models/inboxModel.ts
+++ b/src/models/inboxModel.ts
@@ -138,4 +138,6 @@ messageSchema.set("toJSON", {
     }
 });
 
+messageSchema.index({ ownerId: 1 });
+
 export const Inbox = model<IMessageDatabase>("Inbox", messageSchema, "inbox");
diff --git a/src/models/inventoryModels/inventoryModel.ts b/src/models/inventoryModels/inventoryModel.ts
index 86b9c2c8..d7588a48 100644
--- a/src/models/inventoryModels/inventoryModel.ts
+++ b/src/models/inventoryModels/inventoryModel.ts
@@ -1443,6 +1443,8 @@ inventorySchema.set("toJSON", {
     }
 });
 
+inventorySchema.index({ accountOwnerId: 1 }, { unique: true });
+
 // type overwrites for subdocuments/subdocument arrays
 export type InventoryDocumentProps = {
     FlavourItems: Types.DocumentArray<IFlavourItem>;
diff --git a/src/models/inventoryModels/loadoutModel.ts b/src/models/inventoryModels/loadoutModel.ts
index e43d33d1..dfa90bef 100644
--- a/src/models/inventoryModels/loadoutModel.ts
+++ b/src/models/inventoryModels/loadoutModel.ts
@@ -78,6 +78,8 @@ loadoutSchema.set("toJSON", {
     }
 });
 
+loadoutSchema.index({ loadoutOwnerId: 1 }, { unique: true });
+
 //create database typefor ILoadoutConfig
 type loadoutDocumentProps = {
     NORMAL: Types.DocumentArray<ILoadoutConfigDatabase>;
diff --git a/src/models/personalRoomsModel.ts b/src/models/personalRoomsModel.ts
index e54d1b1c..5addf282 100644
--- a/src/models/personalRoomsModel.ts
+++ b/src/models/personalRoomsModel.ts
@@ -152,6 +152,8 @@ export const personalRoomsSchema = new Schema<IPersonalRoomsDatabase>({
     TailorShop: { type: tailorShopSchema, default: tailorShopDefault }
 });
 
+personalRoomsSchema.index({ personalRoomsOwnerId: 1 }, { unique: true });
+
 export const PersonalRooms = model<IPersonalRoomsDatabase, PersonalRoomsModelType>(
     "PersonalRooms",
     personalRoomsSchema
diff --git a/src/models/statsModel.ts b/src/models/statsModel.ts
index c4ec87c3..93cf9c1f 100644
--- a/src/models/statsModel.ts
+++ b/src/models/statsModel.ts
@@ -103,6 +103,8 @@ statsSchema.set("toJSON", {
     }
 });
 
+statsSchema.index({ accountOwnerId: 1 }, { unique: true });
+
 export const Stats = model<IStatsDatabase>("Stats", statsSchema);
 
 // eslint-disable-next-line @typescript-eslint/ban-types