diff --git a/apps/partner-sas/components/BookingFlowProviders.tsx b/apps/partner-sas/components/BookingFlowProviders.tsx
index c438b3a07..e57e3b579 100644
--- a/apps/partner-sas/components/BookingFlowProviders.tsx
+++ b/apps/partner-sas/components/BookingFlowProviders.tsx
@@ -3,15 +3,11 @@
 import { useSession } from "next-auth/react"
 
 import { BookingFlowContextProvider } from "@scandic-hotels/booking-flow/BookingFlowContextProvider"
-import { dt } from "@scandic-hotels/common/dt"
-import { createLogger } from "@scandic-hotels/common/logger/createLogger"
 import { trpc } from "@scandic-hotels/trpc/client"
+import { isValidSession } from "@scandic-hotels/trpc/utils/session"
 
-import type { Session } from "next-auth"
 import type { ComponentProps, ReactNode } from "react"
 
-const logger = createLogger("BookingFlowProviders")
-
 export function BookingFlowProviders({ children }: { children: ReactNode }) {
   const user = useBookingFlowUser()
   const isLinkedUser =
@@ -36,7 +32,7 @@ type BookingFlowUser = BookingFlowContextData["user"]
 
 function useBookingFlowUser(): BookingFlowUser {
   const { data: session } = useSession()
-  const hasValidSession = isValidClientSession(session)
+  const hasValidSession = isValidSession(session)
 
   const {
     data: euroBonusProfile,
@@ -66,25 +62,3 @@ function useBookingFlowUser(): BookingFlowUser {
     },
   }
 }
-
-function isValidClientSession(session: Session | null) {
-  if (!session) {
-    return false
-  }
-  if (session.error) {
-    logger.error(`Session error: ${session.error}`)
-    return false
-  }
-
-  if (session.token.error) {
-    logger.error(`Session token error: ${session.token.error}`)
-    return false
-  }
-  const expiresAt = dt(session.token.expires_at)
-  if (session.token.expires_at && expiresAt.isBefore(dt())) {
-    logger.warn(`Session expired: ${expiresAt.toISOString()}`)
-    return false
-  }
-
-  return true
-}
diff --git a/apps/partner-sas/hooks/useSocialSession.ts b/apps/partner-sas/hooks/useSocialSession.ts
index d906c997d..c4bc7ba3d 100644
--- a/apps/partner-sas/hooks/useSocialSession.ts
+++ b/apps/partner-sas/hooks/useSocialSession.ts
@@ -6,6 +6,7 @@ import { useEffect } from "react"
 
 import { dt } from "@scandic-hotels/common/dt"
 import { createLogger } from "@scandic-hotels/common/logger/createLogger"
+import { isValidSession } from "@scandic-hotels/trpc/utils/session"
 
 import type { User } from "next-auth"
 
@@ -26,10 +27,12 @@ export function useSocialSession() {
 
 function useSocialSessionQuery() {
   const { data: session } = useSession()
+  const enabled = isValidSession(session) && isUserLinked(session?.user)
+
   return useQuery({
     queryKey: ["socialSession"],
     queryFn: getSocialSession,
-    enabled: !!session,
+    enabled: enabled,
     refetchInterval: getTime(1, "m"),
   })
 }
@@ -38,7 +41,8 @@ function useAutoLogin() {
   const { data: session } = useSession()
   const { isSuccess, data: socialSession } = useSocialSessionQuery()
 
-  const isLinked = isLinkedUser(session?.user) ? session.user.isLinked : false
+  const isLinked = isUserLinked(session?.user)
+
   useEffect(() => {
     if (!isLinked) {
       autoLoginLogger.info("User is not linked")
@@ -174,11 +178,10 @@ function getTime(value: number, unit: "m" | "s") {
   }
 }
 
-function isLinkedUser(
-  user: User | undefined
-): user is User & { isLinked: boolean } {
+function isUserLinked(user: User | undefined): boolean {
   if (user && "isLinked" in user) {
-    return true
+    return !!user.isLinked
   }
+
   return false
 }
diff --git a/apps/scandic-web/components/Header/MainMenu/MyPagesMenuWrapper/index.tsx b/apps/scandic-web/components/Header/MainMenu/MyPagesMenuWrapper/index.tsx
index 2427a790e..6f2335c53 100644
--- a/apps/scandic-web/components/Header/MainMenu/MyPagesMenuWrapper/index.tsx
+++ b/apps/scandic-web/components/Header/MainMenu/MyPagesMenuWrapper/index.tsx
@@ -9,9 +9,9 @@ import { Avatar } from "@scandic-hotels/design-system/Avatar"
 import { LoginButton } from "@scandic-hotels/design-system/LoginButton"
 import { Typography } from "@scandic-hotels/design-system/Typography"
 import { trpc } from "@scandic-hotels/trpc/client"
+import { isValidSession } from "@scandic-hotels/trpc/utils/session"
 
 import useLang from "@/hooks/useLang"
-import { isValidClientSession } from "@/utils/clientSession"
 import { trackLoginClick } from "@/utils/tracking"
 
 import MyPagesMenu, { MyPagesMenuSkeleton } from "../MyPagesMenu"
@@ -27,7 +27,7 @@ export default function MyPagesMenuWrapper() {
   const loginPathname = useLazyPathname({ includeSearchParams: true })
 
   const { data: session } = useSession()
-  const isUserLoggedIn = isValidClientSession(session)
+  const isUserLoggedIn = isValidSession(session)
 
   const { data: user, isLoading: isLoadingUser } = trpc.user.name.useQuery()
   const { data: membership, isLoading: isLoadingMembership } =
diff --git a/apps/scandic-web/components/UserExists.tsx b/apps/scandic-web/components/UserExists.tsx
index ba42ff785..91c8b1582 100644
--- a/apps/scandic-web/components/UserExists.tsx
+++ b/apps/scandic-web/components/UserExists.tsx
@@ -5,15 +5,15 @@ import { useSession } from "next-auth/react"
 
 import { logoutSafely } from "@scandic-hotels/common/constants/routes/handleAuth"
 import { trpc } from "@scandic-hotels/trpc/client"
+import { isValidSession } from "@scandic-hotels/trpc/utils/session"
 
 import { userNotFound } from "@/constants/routes/errorPages"
 
 import useLang from "@/hooks/useLang"
-import { isValidClientSession } from "@/utils/clientSession"
 
 export function UserExists() {
   const { data: session } = useSession()
-  const isUserLoggedIn = isValidClientSession(session)
+  const isUserLoggedIn = isValidSession(session)
   const lang = useLang()
 
   const { isLoading: isLoadingUser, error } = trpc.user.get.useQuery(
diff --git a/apps/scandic-web/hooks/useIsUserLoggedIn.ts b/apps/scandic-web/hooks/useIsUserLoggedIn.ts
index fc36a6b63..be2ee881a 100644
--- a/apps/scandic-web/hooks/useIsUserLoggedIn.ts
+++ b/apps/scandic-web/hooks/useIsUserLoggedIn.ts
@@ -1,9 +1,9 @@
 import { useSession } from "next-auth/react"
 
-import { isValidClientSession } from "@/utils/clientSession"
+import { isValidSession } from "@scandic-hotels/trpc/utils/session"
 
 export function useIsUserLoggedIn() {
   const { data: session } = useSession()
-  const isUserLoggedIn = isValidClientSession(session)
+  const isUserLoggedIn = isValidSession(session)
   return isUserLoggedIn
 }
diff --git a/apps/scandic-web/utils/clientSession.ts b/apps/scandic-web/utils/clientSession.ts
deleted file mode 100644
index a2c220777..000000000
--- a/apps/scandic-web/utils/clientSession.ts
+++ /dev/null
@@ -1,25 +0,0 @@
-import { createLogger } from "@scandic-hotels/common/logger/createLogger"
-
-import type { Session } from "next-auth"
-
-const logger = createLogger("clientSession")
-export function isValidClientSession(session: Session | null) {
-  if (!session) {
-    return false
-  }
-  if (session.error) {
-    logger.error(`Session error: ${session.error}`)
-    return false
-  }
-
-  if (session.token.error) {
-    logger.error(`Session token error: ${session.token.error}`)
-    return false
-  }
-  if (session.token.expires_at && session.token.expires_at < Date.now()) {
-    logger.error(`Session expired: ${session.token.expires_at}`)
-    return false
-  }
-
-  return true
-}
diff --git a/packages/trpc/lib/utils/session.test.ts b/packages/trpc/lib/utils/session.test.ts
new file mode 100644
index 000000000..b3ea73b2d
--- /dev/null
+++ b/packages/trpc/lib/utils/session.test.ts
@@ -0,0 +1,58 @@
+import { beforeEach, describe, expect, it, vi } from "vitest"
+
+import { isValidSession } from "./session"
+
+vi.mock("@scandic-hotels/common/logger/createLogger", () => {
+  return {
+    createLogger: (_name: string) => ({
+      error: vi.fn(),
+      debug: vi.fn(),
+    }),
+  }
+})
+
+describe("isValidSession", () => {
+  beforeEach(() => {
+    vi.restoreAllMocks()
+  })
+
+  it("returns false for null session and does not log", () => {
+    expect(isValidSession(null)).toBe(false)
+  })
+
+  it("returns false and logs when session.error is present", () => {
+    const s: any = { error: "bad" }
+    expect(isValidSession(s)).toBe(false)
+  })
+
+  it("returns false and logs when session.token.error is present", () => {
+    const s: any = { token: { error: "tokfail" } }
+    expect(isValidSession(s)).toBe(false)
+  })
+
+  it("returns false and logs when token.expires_at is in the past", () => {
+    const now = 1_700_000_000_000
+    vi.spyOn(Date, "now").mockReturnValue(now)
+    const s: any = { token: { expires_at: now - 1000 } }
+    expect(isValidSession(s)).toBe(false)
+  })
+
+  it("returns true when token.expires_at equals Date.now()", () => {
+    const now = 1_700_000_000_000
+    vi.spyOn(Date, "now").mockReturnValue(now)
+    const s: any = { token: { expires_at: now } }
+    expect(isValidSession(s)).toBe(true)
+  })
+
+  it("returns true for session without token.expires_at", () => {
+    const s: any = { token: { access: "ok" } }
+    expect(isValidSession(s)).toBe(true)
+  })
+
+  it("returns true for a fully valid session with future expires_at", () => {
+    const now = 1_700_000_000_000
+    vi.spyOn(Date, "now").mockReturnValue(now)
+    const s: any = { token: { expires_at: now + 10_000 } }
+    expect(isValidSession(s)).toBe(true)
+  })
+})
diff --git a/packages/trpc/lib/utils/session.ts b/packages/trpc/lib/utils/session.ts
index 0b283e585..847629d51 100644
--- a/packages/trpc/lib/utils/session.ts
+++ b/packages/trpc/lib/utils/session.ts
@@ -1,11 +1,9 @@
-import "server-only"
-
 import { createLogger } from "@scandic-hotels/common/logger/createLogger"
 
 import type { Session } from "next-auth"
 
+const sessionLogger = createLogger("session")
 export function isValidSession(session: Session | null): session is Session {
-  const sessionLogger = createLogger("session")
   if (!session) {
     return false
   }
@@ -15,13 +13,12 @@ export function isValidSession(session: Session | null): session is Session {
     return false
   }
 
-  const token = session.token
-
-  if (token?.error) {
-    sessionLogger.error(`Session token error: ${token.error}`)
+  if (session.token?.error) {
+    sessionLogger.error(`Session token error: ${session.token.error}`)
     return false
   }
-  if (token?.expires_at && token.expires_at < Date.now()) {
+
+  if (session.token?.expires_at && session.token.expires_at < Date.now()) {
     sessionLogger.debug(`Session expired: ${session.token.expires_at}`)
     return false
   }