diff --git a/package.json b/package.json
index e2d71ff..1291c64 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@textbee/sdk",
-  "version": "0.3.1",
+  "version": "0.4.0",
   "description": "Official JavaScript SDK for textbee.dev, the open source SMS gateway",
   "license": "MIT",
   "packageManager": "pnpm@9.14.2",
diff --git a/src/index.ts b/src/index.ts
index ee70575..7c52bf5 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -23,6 +23,8 @@ export type {
   ListMessagesOptions,
   Message,
   MessageDevice,
+  MessageIssueEntry,
+  MessageIssueSource,
   MessageList,
   MessageListMeta,
   SendSmsImmediateResponse,
diff --git a/src/types.ts b/src/types.ts
index c3b560d..dc73b6e 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -168,6 +168,22 @@ export interface MessageDevice {
   enabled?: boolean
 }
 
+/** Where a failure was reported from. */
+export type MessageIssueSource = 'push' | 'device' | 'server'
+
+/** One failure a message had. Kept after the message later succeeds. */
+export interface MessageIssueEntry {
+  code: string
+  message?: string
+  /** When the failure happened. ISO date. */
+  at: string
+  source: MessageIssueSource
+  /** Set on entries rebuilt from old message fields. */
+  backfilled?: boolean
+  /** True when the entry is a delivery report that did not confirm delivery. The message was sent; this is not a send failure. */
+  deliveryReport?: boolean
+}
+
 export interface Message {
   _id: string
   message: string
@@ -199,10 +215,15 @@ export interface Message {
   dispatchedAt?: string
   sentAt?: string
   deliveredAt?: string
+  /** When the message failed. Present only while status is `failed`. */
   failedAt?: string
   receivedAt?: string
+  /** Current failure code. Present only while status is `failed` (test accounts can keep `FCM_SEND_SKIPPED`). */
   errorCode?: string
+  /** Current failure text. Present only while status is `failed`, or as a timeout note on `unknown`. */
   errorMessage?: string
+  /** Every failure the message had, plus delivery reports that did not confirm delivery (`deliveryReport: true`, not failures). Oldest first. At most 15: the first 5 and the newest 10. */
+  issueHistory?: MessageIssueEntry[]
   simSubscriptionId?: number
   smsBatch?: string
   createdAt?: string
diff --git a/test/client.test.ts b/test/client.test.ts
index 78aa086..cc2f108 100644
--- a/test/client.test.ts
+++ b/test/client.test.ts
@@ -1,6 +1,7 @@
 import { readFileSync } from 'node:fs'
 import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest'
 import { Textbee, TextbeeError } from '../src/index'
+import type { MessageIssueEntry } from '../src/index'
 
 const pkg = JSON.parse(
   readFileSync(new URL('../package.json', import.meta.url), 'utf8'),
@@ -252,6 +253,25 @@ describe('response envelopes', () => {
     expect(url.searchParams.get('type')).toBeNull()
   })
 
+  it('types issueHistory on a message that failed and later succeeded', async () => {
+    const entry: MessageIssueEntry = {
+      code: 'FCM_SEND_FAILED',
+      message: 'push failed',
+      at: '2026-10-01T10:00:00.000Z',
+      source: 'push',
+      backfilled: true,
+    }
+    const page = {
+      data: [{ _id: 'sms-2', message: 'hi', type: 'SENT', status: 'sent', issueHistory: [entry] }],
+      meta: {},
+    }
+    fetchMock.mockImplementation(async () => respond(200, page))
+
+    const result = await client().getMessages()
+
+    expect(result.data[0]?.issueHistory).toEqual([entry])
+  })
+
   it('sends no query at all for a bare account-level getMessages()', async () => {
     fetchMock.mockImplementation(async () => respond(200, { data: [], meta: {} }))