diff --git a/src/sentry/sentry_apps/external_requests/select_requester.py b/src/sentry/sentry_apps/external_requests/select_requester.py
index b7e746811f3e7..9df1240653f15 100644
--- a/src/sentry/sentry_apps/external_requests/select_requester.py
+++ b/src/sentry/sentry_apps/external_requests/select_requester.py
@@ -1,6 +1,7 @@
 import logging
+from collections.abc import Sequence
 from dataclasses import dataclass, field
-from typing import Any
+from typing import Annotated, Any, TypedDict
 from urllib.parse import urlencode, urlparse, urlunparse
 from uuid import uuid4
 
@@ -17,6 +18,12 @@
 logger = logging.getLogger("sentry.sentry_apps.external_requests")
 
 
+class SelectRequesterResult(TypedDict, total=False):
+    # Each contained Sequence of strings is of length 2 i.e ["label", "value"]
+    choices: Sequence[Annotated[Sequence[str], 2]]
+    defaultValue: str
+
+
 @dataclass
 class SelectRequester:
     """
@@ -34,7 +41,7 @@ class SelectRequester:
     query: str | None = field(default=None)
     dependent_data: str | None = field(default=None)
 
-    def run(self) -> dict[str, Any]:
+    def run(self) -> SelectRequesterResult:
         response: list[dict[str, str]] = []
         try:
             url = self._build_url()
@@ -71,7 +78,9 @@ def run(self) -> dict[str, Any]:
                 message = "select-requester.request-failed"
 
             logger.info(message, extra=extra)
-            raise APIError from e
+            raise APIError(
+                f"Something went wrong while getting SelectFields from {self.sentry_app.slug}"
+            ) from e
 
         if not self._validate_response(response):
             logger.info(
@@ -85,7 +94,7 @@ def run(self) -> dict[str, Any]:
                 },
             )
             raise ValidationError(
-                f"Invalid response format for SelectField in {self.sentry_app} from uri: {self.uri}"
+                f"Invalid response format for SelectField in {self.sentry_app.slug} from uri: {self.uri}"
             )
         return self._format_response(response)
 
@@ -107,14 +116,16 @@ def _build_url(self) -> str:
         urlparts[4] = urlencode(query)
         return str(urlunparse(urlparts))
 
-    def _validate_response(self, resp: list[dict[str, Any]]) -> bool:
+    # response format must be:
+    # https://docs.sentry.io/organization/integrations/integration-platform/ui-components/formfield/#uri-response-format
+    def _validate_response(self, resp: Sequence[dict[str, Any]]) -> bool:
         return validate(instance=resp, schema_type="select")
 
-    def _format_response(self, resp: list[dict[str, Any]]) -> dict[str, Any]:
+    def _format_response(self, resp: Sequence[dict[str, Any]]) -> SelectRequesterResult:
         # the UI expects the following form:
         # choices: [[label, value]]
         # default: [label, value]
-        response: dict[str, Any] = {}
+        response: SelectRequesterResult = {}
         choices: list[list[str]] = []
 
         for option in resp:
diff --git a/tests/sentry/sentry_apps/external_requests/test_select_requester.py b/tests/sentry/sentry_apps/external_requests/test_select_requester.py
index 63a726515e5b5..45ad13df13145 100644
--- a/tests/sentry/sentry_apps/external_requests/test_select_requester.py
+++ b/tests/sentry/sentry_apps/external_requests/test_select_requester.py
@@ -120,3 +120,66 @@ def test_500_response(self):
         assert len(requests) == 1
         assert requests[0]["response_code"] == 500
         assert requests[0]["event_type"] == "select_options.requested"
+
+    @responses.activate
+    def test_api_error_message(self):
+        responses.add(
+            method=responses.GET,
+            url=f"https://example.com/get-issues?installationId={self.install.uuid}&projectSlug={self.project.slug}",
+            body="Something failed",
+            status=500,
+        )
+
+        with pytest.raises(APIError) as exception_info:
+            SelectRequester(
+                install=self.install,
+                project_slug=self.project.slug,
+                uri="/get-issues",
+            ).run()
+        assert (
+            str(exception_info.value)
+            == f"Something went wrong while getting SelectFields from {self.sentry_app.slug}"
+        )
+
+    @responses.activate
+    def test_validation_error_message_validator(self):
+        uri = "/get-issues"
+
+        responses.add(
+            method=responses.GET,
+            url=f"https://example.com/get-issues?installationId={self.install.uuid}&projectSlug={self.project.slug}",
+            json={},
+            status=200,
+        )
+
+        with pytest.raises(ValidationError) as exception_info:
+            SelectRequester(
+                install=self.install,
+                project_slug=self.project.slug,
+                uri=uri,
+            ).run()
+
+        assert (
+            str(exception_info.value)
+            == f"Invalid response format for SelectField in {self.sentry_app.slug} from uri: {uri}"
+        )
+
+    @responses.activate
+    def test_validation_error_message_missing_field(self):
+        responses.add(
+            method=responses.GET,
+            url=f"https://example.com/get-issues?installationId={self.install.uuid}&projectSlug={self.project.slug}",
+            json=[{"bruh": "bruhhhhh"}],
+            status=200,
+        )
+
+        with pytest.raises(ValidationError) as exception_info:
+            SelectRequester(
+                install=self.install,
+                project_slug=self.project.slug,
+                uri="/get-issues",
+            ).run()
+
+        assert (
+            str(exception_info.value) == "Missing `value` or `label` in option data for SelectField"
+        )