diff --git a/apps/backend/src/polyfills.tsx b/apps/backend/src/polyfills.tsx
index cc42cddde..dcac8a193 100644
--- a/apps/backend/src/polyfills.tsx
+++ b/apps/backend/src/polyfills.tsx
@@ -10,13 +10,13 @@ function expandStackPortPrefix(value?: string | null) {
   return prefix ? value.replace(/\$\{NEXT_PUBLIC_HEXCLAVE_PORT_PREFIX:-81\}/g, prefix) : value;
 }
 
-const sentryErrorSink = (location: string, error: unknown) => {
+const sentryErrorSink = (location: string, error: unknown, level: "error" | "warning") => {
   if (!("captureException" in Sentry)) {
     // this happens if somehow this is called outside of a Next.js script (eg. in the Prisma seed.ts), just log and ignore
     console.log("Attempted to capture Sentry error outside of Next.js script, ignoring");
     return;
   }
-  Sentry.captureException(error, { extra: { location } });
+  Sentry.captureException(error, { extra: { location }, level });
   runAsynchronouslyAndWaitUntil(Sentry.flush());
 };
 
diff --git a/apps/dashboard/src/polyfills.tsx b/apps/dashboard/src/polyfills.tsx
index 4830829f3..3fb108a36 100644
--- a/apps/dashboard/src/polyfills.tsx
+++ b/apps/dashboard/src/polyfills.tsx
@@ -10,8 +10,8 @@ function expandStackPortPrefix(value?: string | null) {
   return prefix ? value.replace(/\$\{NEXT_PUBLIC_HEXCLAVE_PORT_PREFIX:-81\}/g, prefix as string) : value;
 }
 
-const sentryErrorSink = (location: string, error: unknown) => {
-  Sentry.captureException(error, { extra: { location } });
+const sentryErrorSink = (location: string, error: unknown, level: "error" | "warning") => {
+  Sentry.captureException(error, { extra: { location }, level });
 };
 
 export function ensurePolyfilled() {
diff --git a/packages/stack-cli/src/lib/sentry.ts b/packages/stack-cli/src/lib/sentry.ts
index 31f4ab96d..4b2b83a2d 100644
--- a/packages/stack-cli/src/lib/sentry.ts
+++ b/packages/stack-cli/src/lib/sentry.ts
@@ -89,8 +89,8 @@ export function initSentry() {
     },
   });
 
-  registerErrorSink((location, error) => {
-    Sentry.captureException(error, { extra: { location } });
+  registerErrorSink((location, error, level) => {
+    Sentry.captureException(error, { extra: { location }, level });
     ignoreUnhandledRejection(Sentry.flush(2000));
   });
 }
diff --git a/packages/stack-shared/src/utils/errors.tsx b/packages/stack-shared/src/utils/errors.tsx
index 16a237504..9e979a8a9 100644
--- a/packages/stack-shared/src/utils/errors.tsx
+++ b/packages/stack-shared/src/utils/errors.tsx
@@ -94,16 +94,23 @@ export function errorToNiceString(error: unknown): string {
 }
 
 
-const errorSinks = new Set<(location: string, error: unknown, ...extraArgs: unknown[]) => void>();
-export function registerErrorSink(sink: (location: string, error: unknown) => void): void {
+export type CaptureLevel = "error" | "warning";
+
+type ErrorSink = (location: string, error: unknown, level: CaptureLevel, ...extraArgs: unknown[]) => void;
+
+const errorSinks = new Set<ErrorSink>();
+export function registerErrorSink(sink: ErrorSink): void {
   if (errorSinks.has(sink)) {
     return;
   }
   errorSinks.add(sink);
 }
-registerErrorSink((location, error, ...extraArgs) => {
-  console.error(
-    `\x1b[41mCaptured error in ${location}:`,
+registerErrorSink((location, error, level, ...extraArgs) => {
+  const logger = level === "warning" ? console.warn : console.error;
+  const colorCode = level === "warning" ? "\x1b[43m" : "\x1b[41m";
+  const label = level === "warning" ? "warning" : "error";
+  logger(
+    `${colorCode}Captured ${label} in ${location}:`,
     // HACK: Log a nicified version of the error to get around buggy Next.js pretty-printing
     // https://www.reddit.com/r/nextjs/comments/1gkxdqe/comment/m19kxgn/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button
     errorToNiceString(error),
@@ -111,11 +118,22 @@ registerErrorSink((location, error, ...extraArgs) => {
     "\x1b[0m",
   );
 });
-registerErrorSink((location, error, ...extraArgs) => {
+registerErrorSink((location, error, level, ...extraArgs) => {
   globalVar.stackCapturedErrors = globalVar.stackCapturedErrors ?? [];
-  globalVar.stackCapturedErrors.push({ location, error, extraArgs });
+  globalVar.stackCapturedErrors.push({ location, error, level, extraArgs });
 });
 
+function dispatchToSinks(location: string, error: unknown, level: CaptureLevel): void {
+  for (const sink of errorSinks) {
+    sink(
+      location,
+      error,
+      level,
+      ...error && (typeof error === 'object' || typeof error === 'function') && "customCaptureExtraArgs" in error && Array.isArray(error.customCaptureExtraArgs) ? (error.customCaptureExtraArgs as any[]) : [],
+    );
+  }
+}
+
 /**
  * Captures an error and sends it to the error sinks (most notably, Sentry). Errors caught with captureError are
  * supposed to be seen by an engineer, so they should be actionable and important.
@@ -126,13 +144,15 @@ registerErrorSink((location, error, ...extraArgs) => {
  * Errors that bubble up to the top of runAsynchronously or a route handler are already captured with captureError.
  */
 export function captureError(location: string, error: unknown): void {
-  for (const sink of errorSinks) {
-    sink(
-      location,
-      error,
-      ...error && (typeof error === 'object' || typeof error === 'function') && "customCaptureExtraArgs" in error && Array.isArray(error.customCaptureExtraArgs) ? (error.customCaptureExtraArgs as any[]) : [],
-    );
-  }
+  dispatchToSinks(location, error, "error");
+}
+
+/**
+ * Like captureError, but logs at warning level. Use for issues that an engineer should know about but that aren't
+ * severe enough to be treated as an error (e.g. recoverable failures in background tasks).
+ */
+export function captureWarning(location: string, error: unknown): void {
+  dispatchToSinks(location, error, "warning");
 }
 
 
diff --git a/packages/template/src/lib/stack-app/apps/implementations/session-replay.ts b/packages/template/src/lib/stack-app/apps/implementations/session-replay.ts
index f12927c14..a4115bdba 100644
--- a/packages/template/src/lib/stack-app/apps/implementations/session-replay.ts
+++ b/packages/template/src/lib/stack-app/apps/implementations/session-replay.ts
@@ -1,4 +1,5 @@
 import { isBrowserLike } from "@stackframe/stack-shared/dist/utils/env";
+import { captureWarning } from "@stackframe/stack-shared/dist/utils/errors";
 import { runAsynchronously } from "@stackframe/stack-shared/dist/utils/promises";
 import { Result } from "@stackframe/stack-shared/dist/utils/results";
 
@@ -255,12 +256,12 @@ export class SessionRecorder {
       );
 
       if (res.status === "error") {
-        console.warn("SessionRecorder flush failed:", res.error);
+        captureWarning("SessionRecorder.flush", res.error);
         return;
       }
 
       if (!res.data.ok) {
-        console.warn("SessionRecorder flush failed:", res.data.status, await res.data.text());
+        captureWarning("SessionRecorder.flush", new Error(`SessionRecorder flush failed: ${res.data.status} ${await res.data.text()}`));
       }
     } finally {
       this._flushInProgress = false;