diff --git a/apps/console/src/pages/organizations/access-reviews/dialogs/AddAccessSourceDialog.tsx b/apps/console/src/pages/organizations/access-reviews/dialogs/AddAccessSourceDialog.tsx
index 0095e079a..0c056beb1 100644
--- a/apps/console/src/pages/organizations/access-reviews/dialogs/AddAccessSourceDialog.tsx
+++ b/apps/console/src/pages/organizations/access-reviews/dialogs/AddAccessSourceDialog.tsx
@@ -43,6 +43,10 @@ import type { AddAccessSourceDialogCreateAPIKeyConnectorMutation } from "#/__gen
 import type { AddAccessSourceDialogCreateClientCredentialsConnectorMutation } from "#/__generated__/core/AddAccessSourceDialogCreateClientCredentialsConnectorMutation.graphql";
 
 import { createAccessSourceMutation } from "./accessSourceMutations";
+import {
+  isPostHogDeploymentSelected,
+  PostHogDeploymentField,
+} from "./PostHogDeploymentField";
 
 export const addAccessSourceDialogConnectorProviderInfoFragment = graphql`
   fragment AddAccessSourceDialogConnectorProviderInfoFragment on ConnectorProviderInfo @relay(plural: true) {
@@ -124,8 +128,6 @@ function mapAPIKeyExtraSettingToField(
       break;
     case "POSTHOG":
       if (settingKey === "region") return "posthogRegion";
-      break;
-    case "POSTHOG_SELF_HOSTED":
       if (settingKey === "instanceUrl") return "posthogInstanceUrl";
       break;
   }
@@ -503,6 +505,43 @@ export function AddAccessSourceDialog({
     );
   };
 
+  // PostHog renders a dedicated deployment selector (Cloud region or
+  // self-hosted URL); every other provider falls back to generic fields.
+  const renderAPIKeyExtraSettings = () => {
+    if (!activeProvider) {
+      return null;
+    }
+
+    if (activeProvider.provider === "POSTHOG") {
+      return (
+        <PostHogDeploymentField
+          values={extraSettingValues}
+          onChange={setExtraSettingValues}
+        />
+      );
+    }
+
+    return activeProvider.extraSettings.map((setting) => {
+      const value = extraSettingValues[setting.key] ?? "";
+      return (
+        <Field
+          key={setting.key}
+          label={__(setting.label)}
+          value={value}
+          onChange={(e: React.ChangeEvent<HTMLInputElement>) =>
+            setExtraSettingValues(prev => ({ ...prev, [setting.key]: e.target.value }))}
+          required={setting.required}
+        />
+      );
+    });
+  };
+
+  // PostHog's extra settings are individually optional (region OR instance
+  // URL), so the generic required-field check can't gate it.
+  const postHogAPIKeyValid
+    = activeProvider?.provider !== "POSTHOG"
+      || isPostHogDeploymentSelected(extraSettingValues);
+
   const apiKeyExtraSettingsValid = activeProvider
     ? hasRequiredExtraSettings(activeProvider.extraSettings, extraSettingValues)
     : true;
@@ -586,40 +625,7 @@ export function AddAccessSourceDialog({
               required
               autoFocus
             />
-            {activeProvider?.extraSettings.map((setting) => {
-              const value = extraSettingValues[setting.key] ?? "";
-              const setValue = (next: string) =>
-                setExtraSettingValues(prev => ({ ...prev, [setting.key]: next }));
-
-              // The "region" setting is a fixed US/EU choice; every other
-              // extra setting is a free-text field.
-              if (setting.key === "region") {
-                return (
-                  <div key={setting.key} className="space-y-1.5">
-                    <label className="text-sm font-medium">{__(setting.label)}</label>
-                    <Select
-                      value={value}
-                      onValueChange={setValue}
-                      placeholder={__("Select a region")}
-                    >
-                      <Option value="US">{__("United States (US)")}</Option>
-                      <Option value="EU">{__("Europe (EU)")}</Option>
-                    </Select>
-                  </div>
-                );
-              }
-
-              return (
-                <Field
-                  key={setting.key}
-                  label={__(setting.label)}
-                  value={value}
-                  onChange={(e: React.ChangeEvent<HTMLInputElement>) =>
-                    setValue(e.target.value)}
-                  required={setting.required}
-                />
-              );
-            })}
+            {renderAPIKeyExtraSettings()}
           </DialogContent>
           <DialogFooter>
             <Button
@@ -628,6 +634,7 @@ export function AddAccessSourceDialog({
                 isConnectingAPIKey
                 || !apiKeyValue.trim()
                 || !apiKeyExtraSettingsValid
+                || !postHogAPIKeyValid
               }
             >
               {isConnectingAPIKey ? __("Connecting...") : __("Connect")}
diff --git a/apps/console/src/pages/organizations/access-reviews/dialogs/PostHogDeploymentField.tsx b/apps/console/src/pages/organizations/access-reviews/dialogs/PostHogDeploymentField.tsx
new file mode 100644
index 000000000..03a64ba6c
--- /dev/null
+++ b/apps/console/src/pages/organizations/access-reviews/dialogs/PostHogDeploymentField.tsx
@@ -0,0 +1,79 @@
+// Copyright (c) 2026 Probo Inc <hello@getprobo.com>.
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+// PERFORMANCE OF THIS SOFTWARE.
+
+import { useTranslate } from "@probo/i18n";
+import { Field, Option, Select } from "@probo/ui";
+
+// PostHog is a single provider spanning Cloud (region us/eu) and self-hosted
+// (instance URL). The API-key form surfaces this as one deployment choice;
+// the two settings are mutually exclusive, so picking one clears the other.
+
+type PostHogDeploymentFieldProps = {
+  values: Record<string, string>;
+  onChange: (values: Record<string, string>) => void;
+};
+
+export function PostHogDeploymentField({
+  values,
+  onChange,
+}: PostHogDeploymentFieldProps) {
+  const { __ } = useTranslate();
+
+  const region = values.region ?? "";
+  let deployment = "";
+  if (region === "US" || region === "EU") {
+    deployment = region;
+  } else if ("instanceUrl" in values) {
+    deployment = "SELF_HOSTED";
+  }
+
+  return (
+    <>
+      <div className="space-y-1.5">
+        <label className="text-sm font-medium">{__("Deployment")}</label>
+        <Select
+          value={deployment}
+          onValueChange={(val: string) =>
+            onChange(val === "SELF_HOSTED" ? { instanceUrl: "" } : { region: val })}
+          placeholder={__("Select a deployment")}
+        >
+          <Option value="US">{__("PostHog Cloud (US)")}</Option>
+          <Option value="EU">{__("PostHog Cloud (EU)")}</Option>
+          <Option value="SELF_HOSTED">{__("Self-hosted")}</Option>
+        </Select>
+      </div>
+      {deployment === "SELF_HOSTED" && (
+        <Field
+          label={__("Instance URL")}
+          value={values.instanceUrl ?? ""}
+          onChange={(e: React.ChangeEvent<HTMLInputElement>) =>
+            onChange({ instanceUrl: e.target.value })}
+          required
+        />
+      )}
+    </>
+  );
+}
+
+// isPostHogDeploymentSelected reports whether a valid PostHog deployment has
+// been chosen: a Cloud region (us/eu) or a non-empty self-hosted instance URL.
+export function isPostHogDeploymentSelected(
+  values: Record<string, string>,
+): boolean {
+  return (
+    values.region === "US"
+    || values.region === "EU"
+    || !!values.instanceUrl?.trim()
+  );
+}
diff --git a/packages/ui/src/Atoms/ThirdParties/ThirdPartyLogo.tsx b/packages/ui/src/Atoms/ThirdParties/ThirdPartyLogo.tsx
index 661d311fd..69292f5b0 100644
--- a/packages/ui/src/Atoms/ThirdParties/ThirdPartyLogo.tsx
+++ b/packages/ui/src/Atoms/ThirdParties/ThirdPartyLogo.tsx
@@ -78,7 +78,6 @@ const thirdParties: Record<string, FC<ComponentProps<"svg">>> = {
   OPENAI: OpenAI,
   PAGERDUTY: PagerDuty,
   POSTHOG: PostHog,
-  POSTHOG_SELF_HOSTED: PostHog,
   RESEND: Resend,
   SENTRY: Sentry,
   SLACK: Slack,
diff --git a/pkg/accessreview/drivers/posthog_test.go b/pkg/accessreview/drivers/posthog_test.go
index eb0e82e55..b285fe296 100644
--- a/pkg/accessreview/drivers/posthog_test.go
+++ b/pkg/accessreview/drivers/posthog_test.go
@@ -34,7 +34,7 @@ func TestPostHogDriverListAccounts(t *testing.T) {
 	rec := newRecorder(t, "testdata/posthog", "POSTHOG_PERSONAL_API_KEY")
 	client := newVCRClient(rec, bearerAuth(os.Getenv("POSTHOG_PERSONAL_API_KEY")))
 
-	records, err := NewPostHogDriver(client, "https://app.posthog.com").ListAccounts(context.Background())
+	records, err := NewPostHogDriver(client, "https://us.posthog.com").ListAccounts(context.Background())
 	require.NoError(t, err)
 	require.Len(t, records, 3)
 
@@ -165,7 +165,7 @@ func TestPostHogNameResolver(t *testing.T) {
 
 			client := &http.Client{Transport: &hostRewriter{target: srv.URL}}
 
-			got, err := NewPostHogNameResolver(client, "https://app.posthog.com").ResolveInstanceName(context.Background())
+			got, err := NewPostHogNameResolver(client, "https://us.posthog.com").ResolveInstanceName(context.Background())
 			if tc.wantErr {
 				require.Error(t, err)
 				return
diff --git a/pkg/accessreview/drivers/testdata/posthog.yaml b/pkg/accessreview/drivers/testdata/posthog.yaml
index 56d98e90a..fff611f80 100644
--- a/pkg/accessreview/drivers/testdata/posthog.yaml
+++ b/pkg/accessreview/drivers/testdata/posthog.yaml
@@ -7,7 +7,7 @@ interactions:
         proto_major: 1
         proto_minor: 1
         content_length: 0
-        host: app.posthog.com
+        host: us.posthog.com
         form:
             limit:
                 - "100"
@@ -16,7 +16,7 @@ interactions:
         headers:
             Accept:
                 - application/json
-        url: https://app.posthog.com/api/organizations/@current/members/?limit=100&order=-joined_at
+        url: https://us.posthog.com/api/organizations/@current/members/?limit=100&order=-joined_at
         method: GET
       response:
         proto: HTTP/2.0
diff --git a/pkg/connector/provider/builtin.go b/pkg/connector/provider/builtin.go
index 1f680b761..cb0128dd1 100644
--- a/pkg/connector/provider/builtin.go
+++ b/pkg/connector/provider/builtin.go
@@ -46,7 +46,6 @@ func NewBuiltinRegistry() *Registry {
 		onePasswordRegistration(),
 		openaiRegistration(),
 		posthogRegistration(),
-		posthogSelfHostedRegistration(),
 		pagerdutyRegistration(),
 		resendRegistration(),
 		sentryRegistration(),
diff --git a/pkg/connector/provider/posthog.go b/pkg/connector/provider/posthog.go
index 465087fd4..aa016e40d 100644
--- a/pkg/connector/provider/posthog.go
+++ b/pkg/connector/provider/posthog.go
@@ -24,13 +24,15 @@ import (
 	"go.probo.inc/probo/pkg/coredata"
 )
 
-// posthogRegistration is PostHog Cloud (US + EU). OAuth is the preferred
-// path: oauth.posthog.com is PostHog's region-agnostic OAuth + API gateway,
-// so one app serves both regions and the driver reaches the customer's data
-// through it without a per-connection host. An API-key fallback is also
-// supported, but personal API keys are region-pinned, so it requires the
-// customer to pick their region (us/eu). Self-hosted instances are a separate
-// provider (POSTHOG_SELF_HOSTED).
+// posthogRegistration is PostHog — Cloud (US + EU) and self-hosted, under one
+// provider. OAuth (CIMD public client) is the preferred path for Cloud: the
+// region-agnostic oauth.posthog.com gateway handles the handshake for both
+// regions, after which the driver resolves the data region (us/eu) itself,
+// since that gateway does not serve the data API. An API-key fallback covers
+// both deployments: Cloud personal API keys are region-pinned (the customer
+// picks us/eu) and self-hosted connections carry an instance URL. Both store a
+// single data-host BaseURL; cloud OAuth connections leave it empty for lazy
+// region probing.
 func posthogRegistration() *Registration {
 	return &Registration{
 		Provider:    coredata.ConnectorProviderPostHog,
@@ -56,8 +58,13 @@ func posthogRegistration() *Registration {
 		// token surfaces on the first ListAccounts.
 
 		SupportsAPIKey: true,
+		// API-key connections are either PostHog Cloud (a region, us/eu) or
+		// self-hosted (an instance URL). The two are mutually exclusive, so
+		// neither is individually Required; apiKeyConnectorSettings enforces
+		// that exactly one is supplied.
 		ExtraSettings: []ExtraSetting{
-			{Key: "region", Label: "Region", Required: true},
+			{Key: "region", Label: "Region"},
+			{Key: "instanceUrl", Label: "Instance URL"},
 		},
 
 		NewDriver: func(_ context.Context, c *http.Client, conn *coredata.Connector, _ *log.Logger) (drivers.Driver, error) {
diff --git a/pkg/connector/provider/posthog_self_hosted.go b/pkg/connector/provider/posthog_self_hosted.go
deleted file mode 100644
index 2ab535ae4..000000000
--- a/pkg/connector/provider/posthog_self_hosted.go
+++ /dev/null
@@ -1,71 +0,0 @@
-// Copyright (c) 2026 Probo Inc <hello@getprobo.com>.
-//
-// Permission to use, copy, modify, and/or distribute this software for any
-// purpose with or without fee is hereby granted, provided that the above
-// copyright notice and this permission notice appear in all copies.
-//
-// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
-// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
-// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
-// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
-// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
-// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
-// PERFORMANCE OF THIS SOFTWARE.
-
-package provider
-
-import (
-	"context"
-	"fmt"
-	"net/http"
-
-	"go.gearno.de/kit/log"
-	"go.probo.inc/probo/pkg/accessreview/drivers"
-	"go.probo.inc/probo/pkg/coredata"
-)
-
-// posthogSelfHostedRegistration is customer-hosted PostHog: API-key plus an
-// operator-supplied instance URL (Metabase/Grafana style). It shares the
-// PostHog driver and name resolver, pointed at the instance's BaseURL. OAuth
-// is deliberately not offered here — a single static authorization URL cannot
-// serve arbitrary per-customer instances, so self-hosted OAuth is a separate
-// future effort. Cloud PostHog (POSTHOG) owns the OAuth path.
-func posthogSelfHostedRegistration() *Registration {
-	return &Registration{
-		Provider:    coredata.ConnectorProviderPostHogSelfHosted,
-		DisplayName: "PostHog (Self-Hosted)",
-
-		SupportsAPIKey: true,
-		ExtraSettings: []ExtraSetting{
-			{Key: "instanceUrl", Label: "Instance URL", Required: true},
-		},
-
-		NewDriver: func(_ context.Context, c *http.Client, conn *coredata.Connector, _ *log.Logger) (drivers.Driver, error) {
-			s, err := coredata.ConnectorSettings[coredata.PostHogConnectorSettings](conn)
-			if err != nil {
-				return nil, fmt.Errorf("cannot read posthog self-hosted connector settings: %w", err)
-			}
-
-			// Never fall back to the cloud gateway for a self-hosted
-			// connector — the instance URL is required at creation time.
-			if s.BaseURL == "" {
-				return nil, fmt.Errorf("cannot create posthog self-hosted driver: instance URL is required")
-			}
-
-			return drivers.NewPostHogDriver(c, s.BaseURL), nil
-		},
-		NewNameResolver: func(ctx context.Context, c *http.Client, conn *coredata.Connector, logger *log.Logger) drivers.NameResolver {
-			s, err := coredata.ConnectorSettings[coredata.PostHogConnectorSettings](conn)
-			if err != nil {
-				logger.ErrorCtx(ctx, "cannot read posthog self-hosted connector settings", log.Error(err))
-				return nil
-			}
-
-			if s.BaseURL == "" {
-				return nil
-			}
-
-			return drivers.NewPostHogNameResolver(c, s.BaseURL)
-		},
-	}
-}
diff --git a/pkg/coredata/connector_provider.go b/pkg/coredata/connector_provider.go
index df0ffe073..3dc6915e8 100644
--- a/pkg/coredata/connector_provider.go
+++ b/pkg/coredata/connector_provider.go
@@ -26,41 +26,35 @@ const (
 	ConnectorProviderGoogleWorkspace ConnectorProvider = "GOOGLE_WORKSPACE"
 	ConnectorProviderLinear          ConnectorProvider = "LINEAR"
 	// _ ConnectorProvider = "FIGMA" — formerly Figma; removed (no driver, no OAuth config, no usage)
-	ConnectorProviderOnePassword ConnectorProvider = "ONE_PASSWORD"
-	ConnectorProviderHubSpot     ConnectorProvider = "HUBSPOT"
-	ConnectorProviderDocuSign    ConnectorProvider = "DOCUSIGN"
-	ConnectorProviderNotion      ConnectorProvider = "NOTION"
-	ConnectorProviderBrex        ConnectorProvider = "BREX"
-	ConnectorProviderTally       ConnectorProvider = "TALLY"
-	ConnectorProviderCloudflare  ConnectorProvider = "CLOUDFLARE"
-	ConnectorProviderGrafana     ConnectorProvider = "GRAFANA"
-	ConnectorProviderOpenAI      ConnectorProvider = "OPENAI"
-	ConnectorProviderPostHog     ConnectorProvider = "POSTHOG"
-	// ConnectorProviderPostHogSelfHosted is a distinct provider for
-	// customer-hosted PostHog instances: API-key + operator-supplied
-	// instance URL. Cloud PostHog (POSTHOG) carries the OAuth path; a
-	// separate provider keeps the per-connection instance URL out of the
-	// shared OAuth flow.
-	ConnectorProviderPostHogSelfHosted ConnectorProvider = "POSTHOG_SELF_HOSTED"
-	ConnectorProviderSentry            ConnectorProvider = "SENTRY"
-	ConnectorProviderSupabase          ConnectorProvider = "SUPABASE"
-	ConnectorProviderGitHub            ConnectorProvider = "GITHUB"
-	ConnectorProviderIntercom          ConnectorProvider = "INTERCOM"
-	ConnectorProviderResend            ConnectorProvider = "RESEND"
-	ConnectorProviderMicrosoft365      ConnectorProvider = "MICROSOFT_365"
-	ConnectorProviderGitLab            ConnectorProvider = "GITLAB"
-	ConnectorProviderBitbucket         ConnectorProvider = "BITBUCKET"
-	ConnectorProviderHeroku            ConnectorProvider = "HEROKU"
-	ConnectorProviderPagerDuty         ConnectorProvider = "PAGERDUTY"
-	ConnectorProviderAsana             ConnectorProvider = "ASANA"
-	ConnectorProviderNetlify           ConnectorProvider = "NETLIFY"
-	ConnectorProviderClickUp           ConnectorProvider = "CLICKUP"
-	ConnectorProviderVercel            ConnectorProvider = "VERCEL"
-	ConnectorProviderMonday            ConnectorProvider = "MONDAY"
-	ConnectorProviderMetabase          ConnectorProvider = "METABASE"
-	ConnectorProviderTailscale         ConnectorProvider = "TAILSCALE"
-	ConnectorProviderAnthropic         ConnectorProvider = "ANTHROPIC"
-	ConnectorProviderCursor            ConnectorProvider = "CURSOR"
+	ConnectorProviderOnePassword  ConnectorProvider = "ONE_PASSWORD"
+	ConnectorProviderHubSpot      ConnectorProvider = "HUBSPOT"
+	ConnectorProviderDocuSign     ConnectorProvider = "DOCUSIGN"
+	ConnectorProviderNotion       ConnectorProvider = "NOTION"
+	ConnectorProviderBrex         ConnectorProvider = "BREX"
+	ConnectorProviderTally        ConnectorProvider = "TALLY"
+	ConnectorProviderCloudflare   ConnectorProvider = "CLOUDFLARE"
+	ConnectorProviderGrafana      ConnectorProvider = "GRAFANA"
+	ConnectorProviderOpenAI       ConnectorProvider = "OPENAI"
+	ConnectorProviderPostHog      ConnectorProvider = "POSTHOG"
+	ConnectorProviderSentry       ConnectorProvider = "SENTRY"
+	ConnectorProviderSupabase     ConnectorProvider = "SUPABASE"
+	ConnectorProviderGitHub       ConnectorProvider = "GITHUB"
+	ConnectorProviderIntercom     ConnectorProvider = "INTERCOM"
+	ConnectorProviderResend       ConnectorProvider = "RESEND"
+	ConnectorProviderMicrosoft365 ConnectorProvider = "MICROSOFT_365"
+	ConnectorProviderGitLab       ConnectorProvider = "GITLAB"
+	ConnectorProviderBitbucket    ConnectorProvider = "BITBUCKET"
+	ConnectorProviderHeroku       ConnectorProvider = "HEROKU"
+	ConnectorProviderPagerDuty    ConnectorProvider = "PAGERDUTY"
+	ConnectorProviderAsana        ConnectorProvider = "ASANA"
+	ConnectorProviderNetlify      ConnectorProvider = "NETLIFY"
+	ConnectorProviderClickUp      ConnectorProvider = "CLICKUP"
+	ConnectorProviderVercel       ConnectorProvider = "VERCEL"
+	ConnectorProviderMonday       ConnectorProvider = "MONDAY"
+	ConnectorProviderMetabase     ConnectorProvider = "METABASE"
+	ConnectorProviderTailscale    ConnectorProvider = "TAILSCALE"
+	ConnectorProviderAnthropic    ConnectorProvider = "ANTHROPIC"
+	ConnectorProviderCursor       ConnectorProvider = "CURSOR"
 )
 
 var (
@@ -84,7 +78,6 @@ func ConnectorProviders() []ConnectorProvider {
 		ConnectorProviderGrafana,
 		ConnectorProviderOpenAI,
 		ConnectorProviderPostHog,
-		ConnectorProviderPostHogSelfHosted,
 		ConnectorProviderSentry,
 		ConnectorProviderSupabase,
 		ConnectorProviderGitHub,
@@ -123,7 +116,6 @@ func (v ConnectorProvider) IsValid() bool {
 		ConnectorProviderGrafana,
 		ConnectorProviderOpenAI,
 		ConnectorProviderPostHog,
-		ConnectorProviderPostHogSelfHosted,
 		ConnectorProviderSentry,
 		ConnectorProviderSupabase,
 		ConnectorProviderGitHub,
diff --git a/pkg/coredata/connector_settings.go b/pkg/coredata/connector_settings.go
index e0af16c28..3036bfe4c 100644
--- a/pkg/coredata/connector_settings.go
+++ b/pkg/coredata/connector_settings.go
@@ -92,12 +92,13 @@ type (
 		InstanceURL string `json:"instance_url"`
 	}
 
-	// PostHogConnectorSettings carries the data-API base host for both the
-	// cloud (POSTHOG) and self-hosted (POSTHOG_SELF_HOSTED) providers. It
-	// is the region-pinned host for API-key connections
-	// (https://us.posthog.com / https://eu.posthog.com / a self-hosted
-	// instance URL). It is empty for cloud OAuth connections — the driver
-	// then defaults to the region-agnostic gateway https://oauth.posthog.com.
+	// PostHogConnectorSettings carries the data-API base host for the
+	// PostHog provider, which spans cloud and self-hosted deployments. For
+	// API-key connections it is the region-pinned host
+	// (https://us.posthog.com / https://eu.posthog.com) or a self-hosted
+	// instance URL. It is empty for cloud OAuth connections — the driver
+	// then discovers the region (us/eu) by probing, since the
+	// region-agnostic oauth.posthog.com gateway does not serve the data API.
 	PostHogConnectorSettings struct {
 		BaseURL string `json:"base_url"`
 	}
diff --git a/pkg/coredata/migrations/20260529T617403Z.sql b/pkg/coredata/migrations/20260529T617403Z.sql
deleted file mode 100644
index 3c526722e..000000000
--- a/pkg/coredata/migrations/20260529T617403Z.sql
+++ /dev/null
@@ -1,15 +0,0 @@
--- Copyright (c) 2026 Probo Inc <hello@getprobo.com>.
---
--- Permission to use, copy, modify, and/or distribute this software for any
--- purpose with or without fee is hereby granted, provided that the above
--- copyright notice and this permission notice appear in all copies.
---
--- THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
--- REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
--- AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
--- INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
--- LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
--- OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
--- PERFORMANCE OF THIS SOFTWARE.
-
-ALTER TYPE connector_provider ADD VALUE IF NOT EXISTS 'POSTHOG_SELF_HOSTED';
diff --git a/pkg/server/api/console/v1/connector_settings.go b/pkg/server/api/console/v1/connector_settings.go
index 45c3d8e60..e32b5fa57 100644
--- a/pkg/server/api/console/v1/connector_settings.go
+++ b/pkg/server/api/console/v1/connector_settings.go
@@ -95,27 +95,38 @@ func apiKeyConnectorSettings(input types.CreateAPIKeyConnectorInput) (json.RawMe
 
 		return json.Marshal(&coredata.MetabaseConnectorSettings{InstanceURL: *input.MetabaseInstanceURL})
 	case coredata.ConnectorProviderPostHog:
-		if input.PosthogRegion == nil || *input.PosthogRegion == "" {
-			return nil, fmt.Errorf("cannot create posthog connector: posthogRegion is required")
+		region := ""
+		if input.PosthogRegion != nil {
+			region = *input.PosthogRegion
 		}
 
-		baseURL, ok := drivers.PostHogRegionBaseURL(*input.PosthogRegion)
-		if !ok {
-			return nil, fmt.Errorf("cannot create posthog connector: posthogRegion must be US or EU")
+		instanceURL := ""
+		if input.PosthogInstanceURL != nil {
+			instanceURL = *input.PosthogInstanceURL
 		}
 
-		return json.Marshal(&coredata.PostHogConnectorSettings{BaseURL: baseURL})
-	case coredata.ConnectorProviderPostHogSelfHosted:
-		if input.PosthogInstanceURL == nil || *input.PosthogInstanceURL == "" {
-			return nil, fmt.Errorf("cannot create posthog self-hosted connector: posthogInstanceUrl is required")
-		}
+		// Cloud (region) and self-hosted (instance URL) are mutually
+		// exclusive; exactly one identifies the connection's data host.
+		switch {
+		case region != "" && instanceURL != "":
+			return nil, fmt.Errorf("cannot create posthog connector: set either posthogRegion or posthogInstanceUrl, not both")
+		case region != "":
+			baseURL, ok := drivers.PostHogRegionBaseURL(region)
+			if !ok {
+				return nil, fmt.Errorf("cannot create posthog connector: posthogRegion must be US or EU")
+			}
 
-		u, err := url.Parse(*input.PosthogInstanceURL)
-		if err != nil || (u.Scheme != "http" && u.Scheme != "https") || u.Host == "" {
-			return nil, fmt.Errorf("cannot create posthog self-hosted connector: posthogInstanceUrl must be an http(s) URL")
-		}
+			return json.Marshal(&coredata.PostHogConnectorSettings{BaseURL: baseURL})
+		case instanceURL != "":
+			u, err := url.Parse(instanceURL)
+			if err != nil || (u.Scheme != "http" && u.Scheme != "https") || u.Host == "" {
+				return nil, fmt.Errorf("cannot create posthog connector: posthogInstanceUrl must be an http(s) URL")
+			}
 
-		return json.Marshal(&coredata.PostHogConnectorSettings{BaseURL: *input.PosthogInstanceURL})
+			return json.Marshal(&coredata.PostHogConnectorSettings{BaseURL: instanceURL})
+		default:
+			return nil, fmt.Errorf("cannot create posthog connector: posthogRegion or posthogInstanceUrl is required")
+		}
 	}
 
 	return nil, nil
diff --git a/pkg/server/api/console/v1/graphql/connector.graphql b/pkg/server/api/console/v1/graphql/connector.graphql
index d7fcff6af..841daf5c7 100644
--- a/pkg/server/api/console/v1/graphql/connector.graphql
+++ b/pkg/server/api/console/v1/graphql/connector.graphql
@@ -23,10 +23,6 @@ enum ConnectorProvider
         @goEnum(value: "go.probo.inc/probo/pkg/coredata.ConnectorProviderCloudflare")
     OPENAI @goEnum(value: "go.probo.inc/probo/pkg/coredata.ConnectorProviderOpenAI")
     POSTHOG @goEnum(value: "go.probo.inc/probo/pkg/coredata.ConnectorProviderPostHog")
-    POSTHOG_SELF_HOSTED
-        @goEnum(
-            value: "go.probo.inc/probo/pkg/coredata.ConnectorProviderPostHogSelfHosted"
-        )
     SENTRY @goEnum(value: "go.probo.inc/probo/pkg/coredata.ConnectorProviderSentry")
     SUPABASE
         @goEnum(value: "go.probo.inc/probo/pkg/coredata.ConnectorProviderSupabase")