diff --git a/apps/fp-avdelingsleder/src/app/Dekorator.tsx b/apps/fp-avdelingsleder/src/app/Dekorator.tsx
index 618a87cf36c..1106be0e116 100644
--- a/apps/fp-avdelingsleder/src/app/Dekorator.tsx
+++ b/apps/fp-avdelingsleder/src/app/Dekorator.tsx
@@ -5,7 +5,7 @@ import { useNavigate } from 'react-router-dom';
 import type { Theme } from '@navikt/ds-react';
 
 import { FellesDekorator, type QueryStrings } from '@navikt/fp-app-felles';
-import { AVDELINGSLEDER_URL_NAME, FPSAK_URL_NAME } from '@navikt/fp-konstanter';
+import { getFpSakLenke } from '@navikt/fp-konstanter';
 import { type DekoratorLenke } from '@navikt/fp-sak-dekorator';
 
 interface Props {
@@ -24,8 +24,7 @@ export const Dekorator = (props: Props) => {
   const interneLenker: DekoratorLenke[] = [
     {
       tekst: intl.formatMessage({ id: 'Dekorator.Foreldrepenger' }),
-      callback: () =>
-        (globalThis.location.href = globalThis.location.href.replace(AVDELINGSLEDER_URL_NAME, FPSAK_URL_NAME)),
+      callback: () => (globalThis.location.href = getFpSakLenke()),
     },
   ];
 
diff --git a/apps/fp-frontend/src/app/components/Dekorator.tsx b/apps/fp-frontend/src/app/components/Dekorator.tsx
index 2aab9bb7ac0..8a4756a0c3c 100644
--- a/apps/fp-frontend/src/app/components/Dekorator.tsx
+++ b/apps/fp-frontend/src/app/components/Dekorator.tsx
@@ -6,7 +6,7 @@ import type { Theme } from '@navikt/ds-react';
 import { useQuery } from '@tanstack/react-query';
 
 import { FellesDekorator, type QueryStrings } from '@navikt/fp-app-felles';
-import { AVDELINGSLEDER_URL_NAME, FPSAK_URL_NAME, JOURNALFORING_URL_NAME } from '@navikt/fp-konstanter';
+import { getAvdelingslederLenke, getJournalføringLenke } from '@navikt/fp-konstanter';
 import { type DekoratorLenke } from '@navikt/fp-sak-dekorator';
 import { notEmpty } from '@navikt/fp-utils';
 
@@ -44,15 +44,13 @@ export const Dekorator = (props: Props) => {
   if (kanOppgavestyre) {
     interneLenker.push({
       tekst: intl.formatMessage({ id: 'Dekorator.Avdelingsleder' }),
-      callback: () =>
-        (globalThis.location.href = globalThis.location.href.replace(FPSAK_URL_NAME, AVDELINGSLEDER_URL_NAME)),
+      callback: () => (globalThis.location.href = getAvdelingslederLenke()),
     });
   }
   if (kanSaksbehandle) {
     interneLenker.push({
       tekst: intl.formatMessage({ id: 'Dekorator.Journalforing' }),
-      callback: () =>
-        (globalThis.location.href = globalThis.location.href.replace(FPSAK_URL_NAME, JOURNALFORING_URL_NAME)),
+      callback: () => (globalThis.location.href = getJournalføringLenke()),
     });
   }
   interneLenker.push({
diff --git a/apps/fp-journalforing/src/app/Dekorator.tsx b/apps/fp-journalforing/src/app/Dekorator.tsx
index 2d92e3d741a..b6b1d59e667 100644
--- a/apps/fp-journalforing/src/app/Dekorator.tsx
+++ b/apps/fp-journalforing/src/app/Dekorator.tsx
@@ -5,7 +5,7 @@ import { useNavigate } from 'react-router-dom';
 import type { Theme } from '@navikt/ds-react';
 
 import { FellesDekorator, type QueryStrings } from '@navikt/fp-app-felles';
-import { FPSAK_URL_NAME, JOURNALFORING_URL_NAME } from '@navikt/fp-konstanter';
+import { getFpSakLenke } from '@navikt/fp-konstanter';
 import { type DekoratorLenke } from '@navikt/fp-sak-dekorator';
 
 interface Props {
@@ -24,8 +24,7 @@ export const Dekorator = (props: Props) => {
   const interneLenker: DekoratorLenke[] = [
     {
       tekst: intl.formatMessage({ id: 'Dekorator.Foreldrepenger' }),
-      callback: () =>
-        (globalThis.location.href = globalThis.location.href.replace(JOURNALFORING_URL_NAME, FPSAK_URL_NAME)),
+      callback: () => (globalThis.location.href = getFpSakLenke()),
     },
   ];
 
diff --git a/apps/fp-journalforing/src/components/journalpost/innhold/SakDetaljer.tsx b/apps/fp-journalforing/src/components/journalpost/innhold/SakDetaljer.tsx
index 7db1c2d3a6b..56987c785bc 100644
--- a/apps/fp-journalforing/src/components/journalpost/innhold/SakDetaljer.tsx
+++ b/apps/fp-journalforing/src/components/journalpost/innhold/SakDetaljer.tsx
@@ -5,6 +5,7 @@ import { ExternalLinkIcon } from '@navikt/aksel-icons';
 import { Button, CopyButton, Detail, HStack, Label, Spacer, Tag, type TagProps, VStack } from '@navikt/ds-react';
 import { dateFormat } from '@navikt/ft-utils';
 
+import { getFpSakLenke } from '@navikt/fp-konstanter';
 import type { FagsakStatus, FamilieHendelseType } from '@navikt/fp-types';
 
 import type { FamilieHendelse, JournalFagsak } from '../../../typer/journalFagsakTsType';
@@ -74,7 +75,7 @@ export const SakDetaljer = ({ sak }: Props) => {
   );
 };
 
-const velgSakLenke = (saksnummer: string): string => `/fagsak/${saksnummer}/`;
+const velgSakLenke = (saksnummer: string): string => `${getFpSakLenke()}/fagsak/${saksnummer}/`;
 
 const finnTagProps = (statusKode: FagsakStatus): TagProps | null => {
   switch (statusKode) {
diff --git "a/apps/fp-journalforing/src/components/journalpost/modal/Journalf\303\270rtSubmitModal.tsx" "b/apps/fp-journalforing/src/components/journalpost/modal/Journalf\303\270rtSubmitModal.tsx"
index a6b259c9044..8e40ea6f1fa 100644
--- "a/apps/fp-journalforing/src/components/journalpost/modal/Journalf\303\270rtSubmitModal.tsx"
+++ "b/apps/fp-journalforing/src/components/journalpost/modal/Journalf\303\270rtSubmitModal.tsx"
@@ -4,11 +4,13 @@ import { CheckmarkCircleIcon } from '@navikt/aksel-icons';
 import { BodyShort, Button, HStack, Link, Modal, VStack } from '@navikt/ds-react';
 import { LoadingPanel } from '@navikt/ft-ui-komponenter';
 
+import { getFpSakLenke } from '@navikt/fp-konstanter';
+
 import type { SaksnummerType } from '../../../typer/saksnummerTsType';
 
 import styles from './journalførtSubmitModal.module.css';
 
-const velgSakLenke = (saksnummer: string): string => `/fagsak/${saksnummer}/`;
+const velgSakLenke = (saksnummer: string): string => `${getFpSakLenke()}/fagsak/${saksnummer}/`;
 
 type Props = Readonly<{
   saksnummer?: SaksnummerType;
diff --git a/packages/konstanter/index.ts b/packages/konstanter/index.ts
index ace52328194..8ad9267384f 100644
--- a/packages/konstanter/index.ts
+++ b/packages/konstanter/index.ts
@@ -2,7 +2,6 @@ export { ProsessStegCode } from './src/prosessStegCodes';
 export { FaktaPanelCode } from './src/faktaPanelCodes';
 export { ApiPollingStatus } from './src/apiPollingStatus';
 export { skjermlenkeCodes, skjermlenkeCodesFpTilbake } from './src/skjermlenkeCodes';
-export { JOURNALFORING_URL_NAME, FPSAK_URL_NAME, AVDELINGSLEDER_URL_NAME } from './src/appnavn';
 
 export {
   LINK_TIL_BESTE_BEREGNING_REGNEARK,
@@ -15,4 +14,7 @@ export {
   getModiaUrl,
   hentDokumentLenke,
   hentVedtakDokumentLenke,
+  getFpSakLenke,
+  getJournalføringLenke,
+  getAvdelingslederLenke,
 } from './src/eksterneLenker';
diff --git a/packages/konstanter/src/appnavn.ts b/packages/konstanter/src/appnavn.ts
deleted file mode 100644
index da68ad086e4..00000000000
--- a/packages/konstanter/src/appnavn.ts
+++ /dev/null
@@ -1,3 +0,0 @@
-export const FPSAK_URL_NAME = 'fpsak';
-export const AVDELINGSLEDER_URL_NAME = 'fpavdelingsleder';
-export const JOURNALFORING_URL_NAME = 'fpjournalforing';
diff --git a/packages/konstanter/src/eksterneLenker.ts b/packages/konstanter/src/eksterneLenker.ts
index 4f6d7533dad..e47e82d2c81 100644
--- a/packages/konstanter/src/eksterneLenker.ts
+++ b/packages/konstanter/src/eksterneLenker.ts
@@ -22,3 +22,25 @@ export const hentDokumentLenke = (saksnummer: string, journalpostId: string, dok
 
 export const hentVedtakDokumentLenke = (behandlingUuid: string): string =>
   `/fpsak/api/vedtak/hent-vedtaksdokument?behandlingId=${behandlingUuid}`;
+
+const FPSAK_URL_NAME = 'fpsak';
+const AVDELINGSLEDER_URL_NAME = 'fpavdelingsleder';
+const JOURNALFORING_URL_NAME = 'fpjournalforing';
+
+export const getAvdelingslederLenke = () =>
+  removePathAndQuery(globalThis.location.href.replace(FPSAK_URL_NAME, AVDELINGSLEDER_URL_NAME));
+
+export const getJournalføringLenke = () =>
+  removePathAndQuery(globalThis.location.href.replace(FPSAK_URL_NAME, JOURNALFORING_URL_NAME));
+
+export const getFpSakLenke = () =>
+  removePathAndQuery(
+    globalThis.location.href
+      .replace(JOURNALFORING_URL_NAME, FPSAK_URL_NAME)
+      .replace(AVDELINGSLEDER_URL_NAME, FPSAK_URL_NAME),
+  );
+
+const removePathAndQuery = (url: string): string => {
+  const urlObj = new URL(url);
+  return `${urlObj.protocol}//${urlObj.host}`;
+};