diff --git a/apps/studio/components/interfaces/Integrations/VercelGithub/ProjectLinker.tsx b/apps/studio/components/interfaces/Integrations/VercelGithub/ProjectLinker.tsx
index 8ea17f52cf8..2a491957170 100644
--- a/apps/studio/components/interfaces/Integrations/VercelGithub/ProjectLinker.tsx
+++ b/apps/studio/components/interfaces/Integrations/VercelGithub/ProjectLinker.tsx
@@ -117,7 +117,8 @@ export const ProjectLinker = ({
         ) : showNoEntitiesState && (noSupabaseProjects || noForeignProjects) ? (
           <div className="text-sm text-foreground-lighter text-balance">
             No {missingEntity} projects found. Create a {missingEntity} project to link to a{' '}
-            {oppositeMissingEntity} project, or skip and connect later.
+            {oppositeMissingEntity} project
+            {onSkip !== undefined ? ', or skip and connect later.' : '.'}
           </div>
         ) : (
           <>
@@ -192,8 +193,12 @@ export const ProjectLinker = ({
             <p className="text-foreground-light text-sm">
               You will need to create a {missingEntity} Project to link to a {oppositeMissingEntity}{' '}
               Project.
-              <br />
-              You can skip this and create a Project Connection later.
+              {onSkip !== undefined && (
+                <>
+                  <br />
+                  You can skip this and create a Project Connection later.
+                </>
+              )}
             </p>
           </div>
         ) : (
diff --git a/apps/studio/lib/integrations/vercel-install.utils.ts b/apps/studio/lib/integrations/vercel-install.utils.ts
index 837ffda50dc..8eaac03c080 100644
--- a/apps/studio/lib/integrations/vercel-install.utils.ts
+++ b/apps/studio/lib/integrations/vercel-install.utils.ts
@@ -13,9 +13,33 @@ export function getErrorMessage(error: unknown): string | undefined {
 
 export type VercelInstallSource = 'deploy-button' | 'marketplace' | 'external'
 
-export function getVercelInstallSource(
+/**
+ * Vercel sometimes sends source=marketplace with Deploy Button params
+ * (currentProjectId + external-id). Treat that as deploy-button for routing.
+ */
+export function hasVercelDeployButtonSignals({
+  currentProjectId,
+  externalId,
+}: {
+  currentProjectId?: string
+  externalId?: string
+}): boolean {
+  return Boolean(currentProjectId && externalId)
+}
+
+export function resolveVercelInstallSource({
+  source,
+  currentProjectId,
+  externalId,
+}: {
   source: string | undefined
-): VercelInstallSource | undefined {
+  currentProjectId?: string
+  externalId?: string
+}): VercelInstallSource | undefined {
+  if (hasVercelDeployButtonSignals({ currentProjectId, externalId })) {
+    return 'deploy-button'
+  }
+
   switch (source) {
     case 'deploy-button':
     case 'marketplace':
diff --git a/apps/studio/pages/integrations/vercel/[slug]/marketplace/choose-project.tsx b/apps/studio/pages/integrations/vercel/[slug]/marketplace/choose-project.tsx
index be6674e039f..7febfc533af 100644
--- a/apps/studio/pages/integrations/vercel/[slug]/marketplace/choose-project.tsx
+++ b/apps/studio/pages/integrations/vercel/[slug]/marketplace/choose-project.tsx
@@ -28,6 +28,7 @@ import { useOrganizationsQuery } from '@/data/organizations/organizations-query'
 import { withAuth } from '@/hooks/misc/withAuth'
 import { BASE_PATH } from '@/lib/constants'
 import { getErrorMessage } from '@/lib/get-error-message'
+import { hasVercelDeployButtonSignals } from '@/lib/integrations/vercel-install.utils'
 import { buildStudioPageTitle } from '@/lib/page-title'
 import { useProfileNameAndPicture } from '@/lib/profile'
 import { EMPTY_ARR } from '@/lib/void'
@@ -40,9 +41,10 @@ const PAGE_TITLE = buildStudioPageTitle({
 })
 
 const VercelChooseProjectPage: NextPageWithLayout = () => {
-  const { slug, configurationId, next, currentProjectId } = useParams()
+  const { slug, configurationId, next, currentProjectId, externalId } = useParams()
   const { username, primaryEmail, avatarUrl } = useProfileNameAndPicture()
   const displayName = primaryEmail ?? username ?? ''
+  const isDeployButtonFlow = hasVercelDeployButtonSignals({ currentProjectId, externalId })
 
   const {
     data: integrationData,
@@ -199,11 +201,15 @@ const VercelChooseProjectPage: NextPageWithLayout = () => {
                 getForeignProjectIcon={getForeignProjectIcon}
                 choosePrompt="Choose Vercel project"
                 defaultForeignProjectId={currentProjectId}
-                onSkip={() => {
-                  if (next && isVercelUrl(next)) {
-                    window.location.href = next
-                  }
-                }}
+                onSkip={
+                  isDeployButtonFlow
+                    ? undefined
+                    : () => {
+                        if (next && isVercelUrl(next)) {
+                          window.location.href = next
+                        }
+                      }
+                }
                 loadingForeignProjects={isLoadingVercelProjectsData}
                 mode="Vercel"
               />
diff --git a/apps/studio/pages/integrations/vercel/install.tsx b/apps/studio/pages/integrations/vercel/install.tsx
index 9defd01e649..abc1c711021 100644
--- a/apps/studio/pages/integrations/vercel/install.tsx
+++ b/apps/studio/pages/integrations/vercel/install.tsx
@@ -32,7 +32,7 @@ import { withAuth } from '@/hooks/misc/withAuth'
 import {
   buildVercelInstallRouteQuery,
   getErrorMessage,
-  getVercelInstallSource,
+  resolveVercelInstallSource,
 } from '@/lib/integrations/vercel-install.utils'
 import { buildStudioPageTitle } from '@/lib/page-title'
 import { useProfileNameAndPicture } from '@/lib/profile'
@@ -115,7 +115,11 @@ const VercelIntegration: NextPageWithLayout = () => {
    */
   function handleRouteChange() {
     const orgSlug = selectedOrg?.slug
-    const vercelInstallSource = getVercelInstallSource(source)
+    const vercelInstallSource = resolveVercelInstallSource({
+      source,
+      currentProjectId,
+      externalId,
+    })
     const query = buildVercelInstallRouteQuery({
       source: vercelInstallSource,
       organizationSlug: orgSlug,
diff --git a/apps/studio/tests/pages/integrations/vercel/install.utils.test.ts b/apps/studio/tests/pages/integrations/vercel/install.utils.test.ts
index b8109105f60..7d96716d14d 100644
--- a/apps/studio/tests/pages/integrations/vercel/install.utils.test.ts
+++ b/apps/studio/tests/pages/integrations/vercel/install.utils.test.ts
@@ -3,7 +3,8 @@ import { describe, expect, test } from 'vitest'
 import {
   buildVercelInstallRouteQuery,
   getErrorMessage,
-  getVercelInstallSource,
+  hasVercelDeployButtonSignals,
+  resolveVercelInstallSource,
 } from '@/lib/integrations/vercel-install.utils'
 
 describe('getErrorMessage', () => {
@@ -89,15 +90,46 @@ describe('buildVercelInstallRouteQuery', () => {
   })
 })
 
-describe('getVercelInstallSource', () => {
-  test('returns supported Vercel install sources', () => {
-    expect(getVercelInstallSource('deploy-button')).toBe('deploy-button')
-    expect(getVercelInstallSource('marketplace')).toBe('marketplace')
-    expect(getVercelInstallSource('external')).toBe('external')
+describe('hasVercelDeployButtonSignals', () => {
+  test('requires both currentProjectId and externalId', () => {
+    expect(
+      hasVercelDeployButtonSignals({
+        currentProjectId: 'prj_123',
+        externalId: 'https://github.com/org/repo',
+      })
+    ).toBe(true)
+    expect(hasVercelDeployButtonSignals({ currentProjectId: 'prj_123' })).toBe(false)
+    expect(hasVercelDeployButtonSignals({ externalId: 'https://github.com/org/repo' })).toBe(false)
+    expect(hasVercelDeployButtonSignals({})).toBe(false)
   })
+})
 
-  test('returns undefined for unsupported sources', () => {
-    expect(getVercelInstallSource('deploybutton')).toBeUndefined()
-    expect(getVercelInstallSource(undefined)).toBeUndefined()
+describe('resolveVercelInstallSource', () => {
+  test('overrides marketplace and external when deploy-button signals are present', () => {
+    expect(
+      resolveVercelInstallSource({
+        source: 'marketplace',
+        currentProjectId: 'prj_123',
+        externalId: 'https://github.com/org/repo',
+      })
+    ).toBe('deploy-button')
+    expect(
+      resolveVercelInstallSource({
+        source: 'external',
+        currentProjectId: 'prj_123',
+        externalId: 'https://github.com/org/repo',
+      })
+    ).toBe('deploy-button')
+  })
+
+  test('keeps the declared source when deploy-button signals are incomplete', () => {
+    expect(
+      resolveVercelInstallSource({
+        source: 'marketplace',
+        currentProjectId: 'prj_123',
+      })
+    ).toBe('marketplace')
+    expect(resolveVercelInstallSource({ source: 'deploy-button' })).toBe('deploy-button')
+    expect(resolveVercelInstallSource({ source: undefined })).toBeUndefined()
   })
 })