diff --git a/.env b/.env
index 7e775ed28..dfdd53d2c 100644
--- a/.env
+++ b/.env
@@ -2,15 +2,5 @@ NEXTAUTH_DEBUG="false"
 DEBUG_QUERIES="false"
 SEAMLESS_ENVIRONMENT_SUBDOMAIN="www"
 
-SEAMLESS_LOGIN_DA="https://${SEAMLESS_ENVIRONMENT_SUBDOMAIN}.scandichotels.dk/updatelogin"
-SEAMLESS_LOGIN_DE="https://${SEAMLESS_ENVIRONMENT_SUBDOMAIN}.scandichotels.de/updatelogin"
-SEAMLESS_LOGIN_EN="https://${SEAMLESS_ENVIRONMENT_SUBDOMAIN}.scandichotels.com/updatelogin"
-SEAMLESS_LOGIN_FI="https://${SEAMLESS_ENVIRONMENT_SUBDOMAIN}.scandichotels.fi/updatelogin"
-SEAMLESS_LOGIN_NO="https://${SEAMLESS_ENVIRONMENT_SUBDOMAIN}.scandichotels.no/updatelogin"
-SEAMLESS_LOGIN_SV="https://${SEAMLESS_ENVIRONMENT_SUBDOMAIN}.scandichotels.sv/updatelogin"
-SEAMLESS_LOGOUT_DA="https://${SEAMLESS_ENVIRONMENT_SUBDOMAIN}.scandichotels.dk/updatelogout?newweb=1"
-SEAMLESS_LOGOUT_DE="https://${SEAMLESS_ENVIRONMENT_SUBDOMAIN}.scandichotels.de/updatelogout?newweb=1"
-SEAMLESS_LOGOUT_EN="https://${SEAMLESS_ENVIRONMENT_SUBDOMAIN}.scandichotels.com/updatelogout?newweb=1"
-SEAMLESS_LOGOUT_FI="https://${SEAMLESS_ENVIRONMENT_SUBDOMAIN}.scandichotels.fi/updatelogout?newweb=1"
-SEAMLESS_LOGOUT_NO="https://${SEAMLESS_ENVIRONMENT_SUBDOMAIN}.scandichotels.no/updatelogout?newweb=1"
-SEAMLESS_LOGOUT_SV="https://${SEAMLESS_ENVIRONMENT_SUBDOMAIN}.scandichotels.sv/updatelogout?newweb=1"
+SEAMLESS_LOGIN="https://${SEAMLESS_ENVIRONMENT_SUBDOMAIN}.scandichotels.{topleveldomain}/updatelogin"
+SEAMLESS_LOGOUT="https://${SEAMLESS_ENVIRONMENT_SUBDOMAIN}.scandichotels.{topleveldomain}/updatelogout?newweb=1"
diff --git a/env/server.ts b/env/server.ts
index e416ebf04..cb6add00e 100644
--- a/env/server.ts
+++ b/env/server.ts
@@ -30,8 +30,8 @@ export const env = createEnv({
     CMS_PREVIEW_URL: z.string(),
     CMS_URL: z.string(),
     CMS_BRANCH: z.enum(["development", "production"]),
-    CURITY_CLIENT_ID_USER: z.string(),
-    CURITY_CLIENT_ID_SERVICE: z.string(),
+    CURITY_CLIENT_ID_USER: z.string().default("scandichotels-web"),
+    CURITY_CLIENT_ID_SERVICE: z.string().default("scandichotels-web-backend"),
     CURITY_CLIENT_SECRET_SERVICE: z.string(),
     CURITY_CLIENT_SECRET_USER: z.string(),
     CURITY_ISSUER_USER: z.string(),
@@ -58,18 +58,42 @@ export const env = createEnv({
     PUBLIC_URL: z.string().default(""),
     REVALIDATE_SECRET: z.string(),
     SALESFORCE_PREFERENCE_BASE_URL: z.string(),
-    SEAMLESS_LOGIN_DA: z.string(),
-    SEAMLESS_LOGIN_DE: z.string(),
-    SEAMLESS_LOGIN_EN: z.string(),
-    SEAMLESS_LOGIN_FI: z.string(),
-    SEAMLESS_LOGIN_NO: z.string(),
-    SEAMLESS_LOGIN_SV: z.string(),
-    SEAMLESS_LOGOUT_DA: z.string(),
-    SEAMLESS_LOGOUT_DE: z.string(),
-    SEAMLESS_LOGOUT_EN: z.string(),
-    SEAMLESS_LOGOUT_FI: z.string(),
-    SEAMLESS_LOGOUT_NO: z.string(),
-    SEAMLESS_LOGOUT_SV: z.string(),
+    SEAMLESS_LOGIN_DA: z
+      .string()
+      .transform((s) => replaceTopLevelDomain(s, "dk")),
+    SEAMLESS_LOGIN_DE: z
+      .string()
+      .transform((s) => replaceTopLevelDomain(s, "de")),
+    SEAMLESS_LOGIN_EN: z
+      .string()
+      .transform((s) => replaceTopLevelDomain(s, "com")),
+    SEAMLESS_LOGIN_FI: z
+      .string()
+      .transform((s) => replaceTopLevelDomain(s, "fi")),
+    SEAMLESS_LOGIN_NO: z
+      .string()
+      .transform((s) => replaceTopLevelDomain(s, "no")),
+    SEAMLESS_LOGIN_SV: z
+      .string()
+      .transform((s) => replaceTopLevelDomain(s, "se")),
+    SEAMLESS_LOGOUT_DA: z
+      .string()
+      .transform((s) => replaceTopLevelDomain(s, "dk")),
+    SEAMLESS_LOGOUT_DE: z
+      .string()
+      .transform((s) => replaceTopLevelDomain(s, "de")),
+    SEAMLESS_LOGOUT_EN: z
+      .string()
+      .transform((s) => replaceTopLevelDomain(s, "com")),
+    SEAMLESS_LOGOUT_FI: z
+      .string()
+      .transform((s) => replaceTopLevelDomain(s, "fi")),
+    SEAMLESS_LOGOUT_NO: z
+      .string()
+      .transform((s) => replaceTopLevelDomain(s, "no")),
+    SEAMLESS_LOGOUT_SV: z
+      .string()
+      .transform((s) => replaceTopLevelDomain(s, "se")),
     SHOW_SIGNUP_FLOW: z
       .string()
       // only allow "true" or "false"
@@ -181,18 +205,30 @@ export const env = createEnv({
     PUBLIC_URL: process.env.PUBLIC_URL,
     REVALIDATE_SECRET: process.env.REVALIDATE_SECRET,
     SALESFORCE_PREFERENCE_BASE_URL: process.env.SALESFORCE_PREFERENCE_BASE_URL,
-    SEAMLESS_LOGIN_DA: process.env.SEAMLESS_LOGIN_DA,
-    SEAMLESS_LOGIN_DE: process.env.SEAMLESS_LOGIN_DE,
-    SEAMLESS_LOGIN_EN: process.env.SEAMLESS_LOGIN_EN,
-    SEAMLESS_LOGIN_FI: process.env.SEAMLESS_LOGIN_FI,
-    SEAMLESS_LOGIN_NO: process.env.SEAMLESS_LOGIN_NO,
-    SEAMLESS_LOGIN_SV: process.env.SEAMLESS_LOGIN_SV,
-    SEAMLESS_LOGOUT_DA: process.env.SEAMLESS_LOGOUT_DA,
-    SEAMLESS_LOGOUT_DE: process.env.SEAMLESS_LOGOUT_DE,
-    SEAMLESS_LOGOUT_EN: process.env.SEAMLESS_LOGOUT_EN,
-    SEAMLESS_LOGOUT_FI: process.env.SEAMLESS_LOGOUT_FI,
-    SEAMLESS_LOGOUT_NO: process.env.SEAMLESS_LOGOUT_NO,
-    SEAMLESS_LOGOUT_SV: process.env.SEAMLESS_LOGOUT_SV,
+    SEAMLESS_LOGIN_DA:
+      process.env.SEAMLESS_LOGIN || process.env.SEAMLESS_LOGIN_DA,
+    SEAMLESS_LOGIN_DE:
+      process.env.SEAMLESS_LOGIN || process.env.SEAMLESS_LOGIN_DE,
+    SEAMLESS_LOGIN_EN:
+      process.env.SEAMLESS_LOGIN || process.env.SEAMLESS_LOGIN_EN,
+    SEAMLESS_LOGIN_FI:
+      process.env.SEAMLESS_LOGIN || process.env.SEAMLESS_LOGIN_FI,
+    SEAMLESS_LOGIN_NO:
+      process.env.SEAMLESS_LOGIN || process.env.SEAMLESS_LOGIN_NO,
+    SEAMLESS_LOGIN_SV:
+      process.env.SEAMLESS_LOGIN || process.env.SEAMLESS_LOGIN_SV,
+    SEAMLESS_LOGOUT_DA:
+      process.env.SEAMLESS_LOGOUT || process.env.SEAMLESS_LOGOUT_DA,
+    SEAMLESS_LOGOUT_DE:
+      process.env.SEAMLESS_LOGOUT || process.env.SEAMLESS_LOGOUT_DE,
+    SEAMLESS_LOGOUT_EN:
+      process.env.SEAMLESS_LOGOUT || process.env.SEAMLESS_LOGOUT_EN,
+    SEAMLESS_LOGOUT_FI:
+      process.env.SEAMLESS_LOGOUT || process.env.SEAMLESS_LOGOUT_FI,
+    SEAMLESS_LOGOUT_NO:
+      process.env.SEAMLESS_LOGOUT || process.env.SEAMLESS_LOGOUT_NO,
+    SEAMLESS_LOGOUT_SV:
+      process.env.SEAMLESS_LOGOUT || process.env.SEAMLESS_LOGOUT_SV,
     SHOW_SIGNUP_FLOW: process.env.SHOW_SIGNUP_FLOW,
     WEBVIEW_ENCRYPTION_KEY: process.env.WEBVIEW_ENCRYPTION_KEY,
     BOOKING_ENCRYPTION_KEY: process.env.BOOKING_ENCRYPTION_KEY,
@@ -215,3 +251,7 @@ export const env = createEnv({
     CACHE_TIME_HOTELS: process.env.CACHE_TIME_HOTELS,
   },
 })
+
+function replaceTopLevelDomain(url: string, domain: string) {
+  return url.replaceAll("{topleveldomain}", domain)
+}