diff --git a/src/lib/db/client-applications-store.ts b/src/lib/db/client-applications-store.ts
index b3502c8ed5..efb3bc6d66 100644
--- a/src/lib/db/client-applications-store.ts
+++ b/src/lib/db/client-applications-store.ts
@@ -10,6 +10,7 @@ import type { Logger, LogProvider } from '../logger';
 import type { Db } from './db';
 import type { IApplicationOverview } from '../features/metrics/instance/models';
 import { applySearchFilters } from '../features/feature-search/search-utils';
+import type { IFlagResolver } from '../types';
 
 const COLUMNS = [
     'app_name',
@@ -110,14 +111,6 @@ const remapRow = (input) => {
     return temp;
 };
 
-const remapUsageRow = (input) => {
-    return {
-        app_name: input.appName,
-        project: input.project || '*',
-        environment: input.environment || '*',
-    };
-};
-
 export default class ClientApplicationsStore
     implements IClientApplicationsStore
 {
@@ -125,24 +118,32 @@ export default class ClientApplicationsStore
 
     private logger: Logger;
 
-    constructor(db: Db, eventBus: EventEmitter, getLogger: LogProvider) {
+    private flagResolver: IFlagResolver;
+
+    constructor(
+        db: Db,
+        eventBus: EventEmitter,
+        getLogger: LogProvider,
+        flagResolver: IFlagResolver,
+    ) {
         this.db = db;
+        this.flagResolver = flagResolver;
         this.logger = getLogger('client-applications-store.ts');
     }
 
     async upsert(details: Partial<IClientApplication>): Promise<void> {
         const row = remapRow(details);
         await this.db(TABLE).insert(row).onConflict('app_name').merge();
-        const usageRow = remapUsageRow(details);
+        const usageRows = this.remapUsageRow(details);
         await this.db(TABLE_USAGE)
-            .insert(usageRow)
+            .insert(usageRows)
             .onConflict(['app_name', 'project', 'environment'])
             .merge();
     }
 
     async bulkUpsert(apps: Partial<IClientApplication>[]): Promise<void> {
         const rows = apps.map(remapRow);
-        const usageRows = apps.map(remapUsageRow);
+        const usageRows = apps.flatMap(this.remapUsageRow);
         await this.db(TABLE).insert(rows).onConflict('app_name').merge();
         await this.db(TABLE_USAGE)
             .insert(usageRows)
@@ -420,4 +421,31 @@ export default class ClientApplicationsStore
             },
         };
     }
+
+    private remapUsageRow = (input) => {
+        console.log(input);
+        if (this.flagResolver.isEnabled('parseProjectFromSession')) {
+            if (!input.projects || input.projects.length === 0) {
+                return [
+                    {
+                        app_name: input.appName,
+                        project: '*',
+                        environment: input.environment || '*',
+                    },
+                ];
+            } else {
+                return input.projects.map((project) => ({
+                    app_name: input.appName,
+                    project: project,
+                    environment: input.environment || '*',
+                }));
+            }
+        } else {
+            return {
+                app_name: input.appName,
+                project: input.project || '*',
+                environment: input.environment || '*',
+            };
+        }
+    };
 }
diff --git a/src/lib/db/index.ts b/src/lib/db/index.ts
index 7a97999e30..3fc41b3a99 100644
--- a/src/lib/db/index.ts
+++ b/src/lib/db/index.ts
@@ -65,6 +65,7 @@ export const createStores = (
             db,
             eventBus,
             getLogger,
+            config.flagResolver,
         ),
         clientInstanceStore: new ClientInstanceStore(db, eventBus, getLogger),
         clientMetricsStoreV2: new ClientMetricsStoreV2(
diff --git a/src/lib/features/metrics/instance/register.ts b/src/lib/features/metrics/instance/register.ts
index 00dda75d1f..0397bb39e9 100644
--- a/src/lib/features/metrics/instance/register.ts
+++ b/src/lib/features/metrics/instance/register.ts
@@ -1,6 +1,6 @@
 import type { Response } from 'express';
 import Controller from '../../../routes/controller';
-import type { IUnleashServices } from '../../../types';
+import type { IFlagResolver, IUnleashServices } from '../../../types';
 import type { IUnleashConfig } from '../../../types/option';
 import type { Logger } from '../../../logger';
 import type ClientInstanceService from './instance-service';
@@ -24,6 +24,8 @@ export default class RegisterController extends Controller {
 
     openApiService: OpenApiService;
 
+    flagResolver: IFlagResolver;
+
     constructor(
         {
             clientInstanceService,
@@ -35,6 +37,7 @@ export default class RegisterController extends Controller {
         this.logger = config.getLogger('/api/client/register');
         this.clientInstanceService = clientInstanceService;
         this.openApiService = openApiService;
+        this.flagResolver = config.flagResolver;
 
         this.route({
             method: 'post',
@@ -62,7 +65,7 @@ export default class RegisterController extends Controller {
         });
     }
 
-    private static resolveEnvironment(
+    private resolveEnvironment(
         user: IUser | IApiUser,
         data: Partial<IClientApp>,
     ) {
@@ -76,7 +79,14 @@ export default class RegisterController extends Controller {
         return 'default';
     }
 
-    private static extractProjectFromRequest(
+    private resolveProject(user: IUser | IApiUser) {
+        if (user instanceof ApiUser) {
+            return user.projects;
+        }
+        return ['default'];
+    }
+
+    private extractProjectFromRequest(
         req: IAuthRequest<unknown, void, ClientApplicationSchema>,
     ) {
         const token = req.get('Authorisation') || req.headers.authorization;
@@ -91,8 +101,15 @@ export default class RegisterController extends Controller {
         res: Response<void>,
     ): Promise<void> {
         const { body: data, ip: clientIp, user } = req;
-        data.environment = RegisterController.resolveEnvironment(user, data);
-        data.project = RegisterController.extractProjectFromRequest(req);
+        data.environment = this.resolveEnvironment(user, data);
+        if (this.flagResolver.isEnabled('parseProjectFromSession')) {
+            data.projects = this.resolveProject(user);
+            console.log('Project from session: ', data.projects);
+        } else {
+            data.project = this.extractProjectFromRequest(req);
+            console.log('Project from request: ', data.project);
+        }
+
         await this.clientInstanceService.registerClient(data, clientIp);
         res.header('X-Unleash-Version', version).status(202).end();
     }
diff --git a/src/lib/features/metrics/shared/schema.ts b/src/lib/features/metrics/shared/schema.ts
index 54a8098ff3..5896dee9ee 100644
--- a/src/lib/features/metrics/shared/schema.ts
+++ b/src/lib/features/metrics/shared/schema.ts
@@ -92,4 +92,5 @@ export const clientRegisterSchema = joi
         interval: joi.number().required(),
         environment: joi.string().optional(),
         project: joi.string().optional(),
+        projects: joi.array().optional().items(joi.string()),
     });
diff --git a/src/lib/types/experimental.ts b/src/lib/types/experimental.ts
index 5da6f14d53..bf58248e5b 100644
--- a/src/lib/types/experimental.ts
+++ b/src/lib/types/experimental.ts
@@ -59,7 +59,8 @@ export type IFlagKey =
     | 'bearerTokenMiddleware'
     | 'projectOverviewRefactorFeedback'
     | 'featureLifecycle'
-    | 'projectListFilterMyProjects';
+    | 'projectListFilterMyProjects'
+    | 'parseProjectFromSession';
 
 export type IFlags = Partial<{ [key in IFlagKey]: boolean | Variant }>;
 
@@ -293,6 +294,10 @@ const flags: IFlags = {
         process.env.UNLEASH_EXPERIMENTAL_PROJECTS_LIST_MY_PROJECTS,
         false,
     ),
+    parseProjectFromSession: parseEnvVarBoolean(
+        process.env.UNLEASH_EXPERIMENTAL_PARSE_PROJECT_FROM_SESSION,
+        false,
+    ),
 };
 
 export const defaultExperimentalOptions: IExperimentalOptions = {
diff --git a/src/server-dev.ts b/src/server-dev.ts
index 39e9971de6..9cfaac89f2 100644
--- a/src/server-dev.ts
+++ b/src/server-dev.ts
@@ -56,6 +56,7 @@ process.nextTick(async () => {
                         projectOverviewRefactorFeedback: true,
                         featureLifecycle: true,
                         projectListFilterMyProjects: true,
+                        parseProjectFromSession: false,
                     },
                 },
                 authentication: {