diff --git a/src/infra/matrix-account-selection.test.ts b/src/infra/matrix-account-selection.test.ts
new file mode 100644
index 00000000000..f649e7fde7d
--- /dev/null
+++ b/src/infra/matrix-account-selection.test.ts
@@ -0,0 +1,60 @@
+import { describe, expect, it } from "vitest";
+import type { OpenClawConfig } from "../config/config.js";
+import {
+  findMatrixAccountEntry,
+  resolveConfiguredMatrixAccountIds,
+  resolveMatrixDefaultOrOnlyAccountId,
+} from "./matrix-account-selection.js";
+
+describe("matrix account selection", () => {
+  it("resolves configured account ids from non-canonical account keys", () => {
+    const cfg: OpenClawConfig = {
+      channels: {
+        matrix: {
+          accounts: {
+            "Team Ops": { homeserver: "https://matrix.example.org" },
+          },
+        },
+      },
+    };
+
+    expect(resolveConfiguredMatrixAccountIds(cfg)).toEqual(["team-ops"]);
+    expect(resolveMatrixDefaultOrOnlyAccountId(cfg)).toBe("team-ops");
+  });
+
+  it("matches the default account against normalized Matrix account keys", () => {
+    const cfg: OpenClawConfig = {
+      channels: {
+        matrix: {
+          defaultAccount: "Team Ops",
+          accounts: {
+            "Ops Bot": { homeserver: "https://matrix.example.org" },
+            "Team Ops": { homeserver: "https://matrix.example.org" },
+          },
+        },
+      },
+    };
+
+    expect(resolveMatrixDefaultOrOnlyAccountId(cfg)).toBe("team-ops");
+  });
+
+  it("finds the raw Matrix account entry by normalized account id", () => {
+    const cfg: OpenClawConfig = {
+      channels: {
+        matrix: {
+          accounts: {
+            "Team Ops": {
+              homeserver: "https://matrix.example.org",
+              userId: "@ops:example.org",
+            },
+          },
+        },
+      },
+    };
+
+    expect(findMatrixAccountEntry(cfg, "team-ops")).toEqual({
+      homeserver: "https://matrix.example.org",
+      userId: "@ops:example.org",
+    });
+  });
+});
diff --git a/src/infra/matrix-account-selection.ts b/src/infra/matrix-account-selection.ts
index 548eb6edeaa..827b500c72f 100644
--- a/src/infra/matrix-account-selection.ts
+++ b/src/infra/matrix-account-selection.ts
@@ -13,6 +13,30 @@ export function resolveMatrixChannelConfig(cfg: OpenClawConfig): Record<string,
   return isRecord(cfg.channels?.matrix) ? cfg.channels.matrix : null;
 }
 
+export function findMatrixAccountEntry(
+  cfg: OpenClawConfig,
+  accountId: string,
+): Record<string, unknown> | null {
+  const channel = resolveMatrixChannelConfig(cfg);
+  if (!channel) {
+    return null;
+  }
+
+  const accounts = isRecord(channel.accounts) ? channel.accounts : null;
+  if (!accounts) {
+    return null;
+  }
+
+  const normalizedAccountId = normalizeAccountId(accountId);
+  for (const [rawAccountId, value] of Object.entries(accounts)) {
+    if (normalizeAccountId(rawAccountId) === normalizedAccountId && isRecord(value)) {
+      return value;
+    }
+  }
+
+  return null;
+}
+
 export function resolveConfiguredMatrixAccountIds(cfg: OpenClawConfig): string[] {
   const channel = resolveMatrixChannelConfig(cfg);
   if (!channel) {
@@ -24,9 +48,9 @@ export function resolveConfiguredMatrixAccountIds(cfg: OpenClawConfig): string[]
     return [DEFAULT_ACCOUNT_ID];
   }
 
-  const ids = Object.keys(accounts)
-    .map((accountId) => normalizeAccountId(accountId))
-    .filter((accountId) => accountId.length > 0 && isRecord(accounts[accountId]));
+  const ids = Object.entries(accounts)
+    .filter(([, value]) => isRecord(value))
+    .map(([accountId]) => normalizeAccountId(accountId));
 
   return Array.from(new Set(ids.length > 0 ? ids : [DEFAULT_ACCOUNT_ID])).toSorted((a, b) =>
     a.localeCompare(b),
@@ -39,18 +63,17 @@ export function resolveMatrixDefaultOrOnlyAccountId(cfg: OpenClawConfig): string
     return DEFAULT_ACCOUNT_ID;
   }
 
-  const accounts = isRecord(channel.accounts) ? channel.accounts : null;
   const configuredDefault = normalizeOptionalAccountId(
     typeof channel.defaultAccount === "string" ? channel.defaultAccount : undefined,
   );
-  if (configuredDefault && accounts && isRecord(accounts[configuredDefault])) {
+  const configuredAccountIds = resolveConfiguredMatrixAccountIds(cfg);
+  if (configuredDefault && configuredAccountIds.includes(configuredDefault)) {
     return configuredDefault;
   }
-  if (accounts && isRecord(accounts[DEFAULT_ACCOUNT_ID])) {
+  if (configuredAccountIds.includes(DEFAULT_ACCOUNT_ID)) {
     return DEFAULT_ACCOUNT_ID;
   }
 
-  const configuredAccountIds = resolveConfiguredMatrixAccountIds(cfg);
   if (configuredAccountIds.length === 1) {
     return configuredAccountIds[0] ?? DEFAULT_ACCOUNT_ID;
   }
diff --git a/src/infra/matrix-migration-config.ts b/src/infra/matrix-migration-config.ts
index f5f3d469987..a95a6e65295 100644
--- a/src/infra/matrix-migration-config.ts
+++ b/src/infra/matrix-migration-config.ts
@@ -3,7 +3,7 @@ import os from "node:os";
 import type { OpenClawConfig } from "../config/config.js";
 import { resolveStateDir } from "../config/paths.js";
 import { normalizeAccountId } from "../routing/session-key.js";
-import { resolveMatrixChannelConfig } from "./matrix-account-selection.js";
+import { findMatrixAccountEntry, resolveMatrixChannelConfig } from "./matrix-account-selection.js";
 import { resolveMatrixCredentialsPath } from "./matrix-storage-paths.js";
 
 export type MatrixStoredCredentials = {
@@ -13,10 +13,6 @@ export type MatrixStoredCredentials = {
   deviceId?: string;
 };
 
-function isRecord(value: unknown): value is Record<string, unknown> {
-  return Boolean(value) && typeof value === "object" && !Array.isArray(value);
-}
-
 function clean(value: unknown): string {
   return typeof value === "string" ? value.trim() : "";
 }
@@ -60,12 +56,7 @@ function resolveMatrixAccountConfigEntry(
   cfg: OpenClawConfig,
   accountId: string,
 ): Record<string, unknown> | null {
-  const channel = resolveMatrixChannelConfig(cfg);
-  if (!channel) {
-    return null;
-  }
-  const accounts = isRecord(channel.accounts) ? channel.accounts : null;
-  return accounts && isRecord(accounts[accountId]) ? accounts[accountId] : null;
+  return findMatrixAccountEntry(cfg, accountId);
 }
 
 export function resolveMatrixMigrationConfigFields(params: {