diff --git a/src/app/applications/application-detail/application-detail.component.html b/src/app/applications/application-detail/application-detail.component.html
index 1bff90fd..cee8771f 100644
--- a/src/app/applications/application-detail/application-detail.component.html
+++ b/src/app/applications/application-detail/application-detail.component.html
@@ -41,6 +41,7 @@ <h3>{{ "APPLICATION.DETAILS" | translate }}</h3>
               [personalData]="application.personalData"
               [startDate]="application.startDate"
               [status]="application.status"
+              [metadata]="application.metadata"
             ></app-metadata-details>
           </div>
         </div>
diff --git a/src/app/applications/application.model.ts b/src/app/applications/application.model.ts
index 63fd9a97..4bbc90cb 100644
--- a/src/app/applications/application.model.ts
+++ b/src/app/applications/application.model.ts
@@ -7,6 +7,8 @@ import { Organisation } from "../admin/organisation/organisation.model";
 import { ApplicationStatus } from "./enums/status.enum";
 import { IotDevice } from "./iot-devices/iot-device.model";
 import { ApplicationDeviceType } from "./models/application-device-type.model";
+import { KeyValue } from "@shared/types/tuple.type";
+import { Metadata } from "@shared/types/metadata";
 
 export type ApplicationWithStatus = Application & { statusCheck: "stable" | "alert" };
 
@@ -37,6 +39,7 @@ export class Application {
   public permissions: PermissionResponse[];
   public permissionIds: number[];
   public dataTargets: Datatarget[];
+  public metadata?: Metadata;
 }
 
 export class ApplicationRequest {
@@ -56,6 +59,7 @@ export class ApplicationRequest {
   public controlledProperties?: ControlledPropertyTypes[];
   public deviceTypes?: ApplicationDeviceTypeUnion[];
   public permissionIds: number[];
+  public metadata?: Metadata;
 }
 
 export interface ApplicationData {
diff --git a/src/app/shared/components/forms/form-body-application/form-body-application.component.html b/src/app/shared/components/forms/form-body-application/form-body-application.component.html
index 016b9c63..b2b8bcde 100644
--- a/src/app/shared/components/forms/form-body-application/form-body-application.component.html
+++ b/src/app/shared/components/forms/form-body-application/form-body-application.component.html
@@ -10,6 +10,7 @@
       </ul>
     </div>
   }
+
   <div class="row">
     <div class="form-group mt-3">
       <label class="form-label" for="name">{{ "GEN.NAME" | translate }}*</label>
@@ -313,6 +314,11 @@
     </div>
   </div>
 
+  <div class="row mt-2">
+    <h3>{{ "QUESTION.METADATA" | translate }}</h3>
+    <app-form-key-value-list [(tags)]="metadataTags" [errorFieldId]="errorMetadataFieldId"></app-form-key-value-list>
+  </div>
+
   <div class="form-group mt-5">
     <button (click)="routeBack()" class="btn btn-secondary" type="button">{{ "GEN.CANCEL" | translate }}</button>
     <button class="btn btn-primary ms-2" type="submit">{{ submitButton }}</button>
diff --git a/src/app/shared/components/forms/form-body-application/form-body-application.component.ts b/src/app/shared/components/forms/form-body-application/form-body-application.component.ts
index 6e9d2fc5..047567bc 100644
--- a/src/app/shared/components/forms/form-body-application/form-body-application.component.ts
+++ b/src/app/shared/components/forms/form-body-application/form-body-application.component.ts
@@ -16,6 +16,9 @@ import { SharedVariableService } from "@shared/shared-variable/shared-variable.s
 import { isPhoneNumberValid } from "@shared/validators/phone-number.validator";
 import { ReplaySubject, Subject, Subscription } from "rxjs";
 import { takeUntil } from "rxjs/operators";
+import { keyValueListToMetadata, metadataToKeyValueList } from "@shared/helpers/metadata.helper";
+import { TranslatableError } from "@shared/translatable-error";
+import { addWarning } from "@angular-devkit/build-angular/src/utils/webpack-diagnostics";
 
 export class User {
   public name: string;
@@ -58,6 +61,8 @@ export class FormBodyApplicationComponent implements OnInit, OnDestroy {
   public filteredPermissionsMulti: ReplaySubject<PermissionResponse[]> = new ReplaySubject<PermissionResponse[]>(1);
   private id: number;
   private _onDestroy = new Subject<void>();
+  metadataTags: { key?: string; value?: string }[] = [];
+  errorMetadataFieldId: string | undefined;
 
   constructor(
     private restService: RestService,
@@ -157,6 +162,9 @@ export class FormBodyApplicationComponent implements OnInit, OnDestroy {
         this.application.deviceTypes = application.deviceTypes.map(deviceType => deviceType.type);
         this.application.permissionIds = application.permissionIds;
         this.permissionMultiCtrl.setValue(this.application.permissionIds);
+        if (application.metadata) {
+          this.metadataTags = metadataToKeyValueList(application.metadata) ?? [];
+        }
 
         this.fillDefaultMetadata();
       });
@@ -177,6 +185,18 @@ export class FormBodyApplicationComponent implements OnInit, OnDestroy {
     this.application.endDate = this.serializedEndDate.value?.toISOString();
     this.application.contactPhone = this.phoneCtrl.value ? this.phoneCtrl.value : null;
 
+    try {
+      this.application.metadata = keyValueListToMetadata(this.metadataTags);
+    } catch (error) {
+      let message = error.message;
+      if (error instanceof TranslatableError) {
+        // @todo Can we safely use `instant` here?
+        message = this.translate.instant(message, error.context);
+      }
+      this.handleError(this.buildErrorMessage(message), "application.metadata");
+      return;
+    }
+
     if (this.id) {
       this.updateApplication(this.id);
     } else {
diff --git a/src/app/shared/components/metadata-details/metadata-details.component.html b/src/app/shared/components/metadata-details/metadata-details.component.html
index 6b22ee26..e979d9fe 100644
--- a/src/app/shared/components/metadata-details/metadata-details.component.html
+++ b/src/app/shared/components/metadata-details/metadata-details.component.html
@@ -69,3 +69,16 @@
     >{{ deviceTypeText }}
   </p>
 }
+
+@if (metadata) {
+  <p>
+    <strong>{{ "APPLICATION.METADATA-FIELD.METADATA" | translate }}</strong
+    >
+  </p>
+  @for (key of Object.keys(metadata); track key; let i = $index) {
+    <p>
+      <strong>{{ i + 1 }}: {{ key }}</strong>
+      <span>{{ metadata[key] }}</span>
+    </p>
+  }
+}
diff --git a/src/app/shared/components/metadata-details/metadata-details.component.ts b/src/app/shared/components/metadata-details/metadata-details.component.ts
index 67ff019c..b330eddd 100644
--- a/src/app/shared/components/metadata-details/metadata-details.component.ts
+++ b/src/app/shared/components/metadata-details/metadata-details.component.ts
@@ -5,6 +5,7 @@ import { ApplicationDeviceType } from "@applications/models/application-device-t
 import { TranslateService } from "@ngx-translate/core";
 import { toPascalKebabCase } from "@shared/helpers/string.helper";
 import { ControlledProperty } from "@shared/models/controlled-property.model";
+import { Metadata } from "@shared/types/metadata";
 
 @Component({
   selector: "app-metadata-details",
@@ -26,6 +27,7 @@ export class MetadataDetailsComponent implements OnInit {
   @Input() hardware?: string;
   @Input() controlledProperties?: ControlledProperty[];
   @Input() deviceTypes?: ApplicationDeviceType[];
+  @Input() metadata?: Metadata;
   controlledPropertyText: string;
   deviceTypeText: string;
 
@@ -48,4 +50,6 @@ export class MetadataDetailsComponent implements OnInit {
         .join(", ");
     });
   }
+
+  protected readonly Object = Object;
 }
diff --git a/src/app/shared/helpers/metadata.helper.ts b/src/app/shared/helpers/metadata.helper.ts
new file mode 100644
index 00000000..8b038448
--- /dev/null
+++ b/src/app/shared/helpers/metadata.helper.ts
@@ -0,0 +1,39 @@
+import { KeyValue } from "@shared/types/tuple.type";
+import { Metadata } from "@shared/types/metadata";
+import { TranslatableError } from "@shared/translatable-error";
+
+export const metadataToKeyValueList = (metadata: object, shouldThrowOnError = false): KeyValue[] => {
+  try {
+    const tags: KeyValue[] = [];
+
+    for (const key of Object.keys(metadata)) {
+      tags.push({ key, value: metadata[key] });
+    }
+
+    return tags;
+  } catch (error) {
+    if (shouldThrowOnError) {
+      throw error;
+    }
+  }
+};
+
+export const keyValueListToMetadata = (pairs: KeyValue[]): Metadata => {
+  const metadata = {}
+
+  for (const pair of pairs) {
+    const key = pair.key?.trim();
+    const value = pair.value?.trim();
+    if (!key) {
+      throw new TranslatableError("ERROR.METADATA-EMPTY-KEY");
+    } else if (key in metadata) {
+      throw new TranslatableError("ERROR.METADATA-DUPLICATE-KEY", { key });
+    }
+    if (!value) {
+      throw new TranslatableError("ERROR.METADATA-EMPTY-VALUE", { key });
+    }
+    metadata[key] = value
+  }
+
+  return metadata;
+};
diff --git a/src/app/shared/translatable-error.ts b/src/app/shared/translatable-error.ts
new file mode 100644
index 00000000..4e9c3258
--- /dev/null
+++ b/src/app/shared/translatable-error.ts
@@ -0,0 +1,12 @@
+import { InterpolationParameters } from "@ngx-translate/core";
+
+export class TranslatableError extends Error {
+  constructor(
+    msg: string,
+    public readonly context?: InterpolationParameters
+  ) {
+    super(msg);
+    // Set the prototype explicitly.
+    Object.setPrototypeOf(this, TranslatableError.prototype);
+  }
+}
diff --git a/src/app/shared/types/metadata.ts b/src/app/shared/types/metadata.ts
new file mode 100644
index 00000000..bd55cad8
--- /dev/null
+++ b/src/app/shared/types/metadata.ts
@@ -0,0 +1 @@
+export type Metadata  = Record<string, string>
diff --git a/src/assets/i18n/da.json b/src/assets/i18n/da.json
index c2249658..9b49cc81 100644
--- a/src/assets/i18n/da.json
+++ b/src/assets/i18n/da.json
@@ -157,7 +157,8 @@
       "PERSONAL-DATA": "Persondata",
       "HARDWARE": "Hardware",
       "CONTROLLED-PROPERTY": "Data",
-      "DEVICE-TYPE": "Forbindelsesteknologi"
+      "DEVICE-TYPE": "Forbindelsesteknologi",
+      "METADATA": "Metadata"
     },
     "CHANGE-ORGANIZATION": {
       "TITLE": "Skift organisation",
@@ -1290,7 +1291,10 @@
     "USER-INACTIVE": "Login successfuldt, men din bruger er deaktiveret i OS2IoT. Kontakt din administrator for at få tildelt rettigheder"
   },
   "ERROR": {
-    "SEMANTIC": "Semantisk fejl, verificer at navn og værdier er på det rigtige format"
+    "SEMANTIC": "Semantisk fejl, verificer at navn og værdier er på det rigtige format",
+    "METADATA-EMPTY-KEY": "Metadatanavnet må ikke være tomt",
+    "METADATA-EMPTY-VALUE": "Metadataværdien for \"{{key}}\" må ikke være tom",
+    "METADATA-DUPLICATE-KEY": "Metadatanavnet \"{{key}}\" er allerede brugt"
   },
   "DIALOG": {
     "SAVE.TITLE": "Slet",