diff --git a/src/components/global/RequestQueueProgress.vue b/src/components/global/RequestQueueProgress.vue
index 048c6689..b6fca404 100644
--- a/src/components/global/RequestQueueProgress.vue
+++ b/src/components/global/RequestQueueProgress.vue
@@ -1,7 +1,11 @@
 <script setup>
 import { computed, onBeforeUnmount, onMounted, ref, watch } from "vue";
 import { API_URL, REQUEST_QUEUE_CONFIG } from "@/config.js";
-import { requestQueueState } from "@/services/requestQueue.js";
+import {
+  clearErrorRequests,
+  clearMissingPermissions,
+  requestQueueState,
+} from "@/services/requestQueue.js";
 
 const METHOD_ICON_CLASS = Object.freeze({
   GET: "fa-download",
@@ -24,9 +28,13 @@ let pingTimer = null;
 
 const hasOutstandingRequests = computed(() => requestQueueState.pending + requestQueueState.active > 0);
 const processedRequests = computed(() => requestQueueState.batchCompleted + requestQueueState.batchFailed);
+const missingPermissions = computed(() => requestQueueState.missingPermissions || []);
 const hasStoredErrors = computed(() => (requestQueueState.errorRequests || []).length > 0);
+const hasStoredPermissions = computed(() => missingPermissions.value.length > 0);
+const hasStoredInspectorItems = computed(() => hasStoredErrors.value || hasStoredPermissions.value);
 const shouldRenderForBatch = computed(() =>
-  hasStoredErrors.value || requestQueueState.batchTotal >= REQUEST_QUEUE_CONFIG.progress.minBatchSizeToShow
+  hasStoredInspectorItems.value
+  || requestQueueState.batchTotal >= REQUEST_QUEUE_CONFIG.progress.minBatchSizeToShow
 );
 const activeRequests = computed(() => requestQueueState.activeRequests || []);
 const recentRequests = computed(() => requestQueueState.recentRequests || []);
@@ -131,14 +139,22 @@ const toggleExpanded = () => {
   isExpanded.value = !isExpanded.value;
 };
 
-watch([hasOutstandingRequests, shouldRenderForBatch, hasStoredErrors], ([hasOutstanding, shouldRender, hasErrors]) => {
+const handleClearErrors = () => {
+  clearErrorRequests();
+};
+
+const handleClearMissingPermissions = () => {
+  clearMissingPermissions();
+};
+
+watch([hasOutstandingRequests, shouldRenderForBatch, hasStoredInspectorItems], ([hasOutstanding, shouldRender, hasInspectorItems]) => {
   if (!shouldRender) {
     clearHideTimer();
     isVisible.value = false;
     return;
   }
 
-  if (hasOutstanding || hasErrors) {
+  if (hasOutstanding || hasInspectorItems) {
     clearHideTimer();
     isVisible.value = true;
     return;
@@ -187,7 +203,18 @@ onBeforeUnmount(() => {
     <div v-if="isVisible" class="request-queue-progress-shell" data-testid="request-queue-progress">
       <div v-if="isExpanded" class="request-queue-progress__expanded-layout">
         <aside class="request-queue-progress__side" data-testid="request-queue-errors-box">
-          <div class="request-queue-progress__section-title">Errors ({{ errorRequests.length }})</div>
+          <div class="request-queue-progress__side-header">
+            <div class="request-queue-progress__section-title">Errors ({{ errorRequests.length }})</div>
+            <button
+              class="request-queue-progress__clear-button"
+              data-testid="request-queue-clear-errors"
+              type="button"
+              :disabled="errorRequests.length === 0"
+              @click="handleClearErrors"
+            >
+              Clear
+            </button>
+          </div>
           <ul v-if="errorRequests.length > 0" class="request-queue-progress__list">
             <li v-for="request in errorRequests" :key="request.id" class="request-queue-progress__error-item">
               <div class="request-queue-progress__error-summary">
@@ -197,7 +224,7 @@ onBeforeUnmount(() => {
                 </span>
                 <span class="request-queue-progress__endpoint" :title="request.url">{{ request.url }}</span>
                 <span class="request-queue-progress__error-meta">
-                  {{ request.statusCode || "n/a" }} • {{ formatDuration(request.requestDurationMs) }}
+                  {{ request.statusCode || "n/a" }} - {{ formatDuration(request.requestDurationMs) }}
                 </span>
               </div>
 
@@ -227,39 +254,73 @@ onBeforeUnmount(() => {
 
           <div class="request-queue-progress__section">
             <div class="request-queue-progress__section-title">Active requests ({{ activeRequests.length }})</div>
-            <ul v-if="activeRequests.length > 0" class="request-queue-progress__list">
-              <li v-for="request in activeRequests" :key="request.id" class="request-queue-progress__list-item">
-                <span class="request-queue-progress__method">
-                  <i class="fas" :class="getMethodIconClass(request.method)" aria-hidden="true"></i>
-                  {{ request.method }}
-                </span>
-                <span class="request-queue-progress__endpoint" :title="request.url">{{ request.url }}</span>
-                <span class="request-queue-progress__time">{{ formatDuration(getActiveRequestElapsedMs(request)) }}</span>
-              </li>
-            </ul>
-            <div v-else class="request-queue-progress__empty">No active requests</div>
+            <div class="request-queue-progress__section-content request-queue-progress__section-content--active">
+              <ul v-if="activeRequests.length > 0" class="request-queue-progress__list">
+                <li v-for="request in activeRequests" :key="request.id" class="request-queue-progress__list-item">
+                  <span class="request-queue-progress__method">
+                    <i class="fas" :class="getMethodIconClass(request.method)" aria-hidden="true"></i>
+                    {{ request.method }}
+                  </span>
+                  <span class="request-queue-progress__endpoint" :title="request.url">{{ request.url }}</span>
+                  <span class="request-queue-progress__time">{{ formatDuration(getActiveRequestElapsedMs(request)) }}</span>
+                </li>
+              </ul>
+              <div v-else class="request-queue-progress__empty">No active requests</div>
+            </div>
           </div>
 
           <div class="request-queue-progress__section">
             <div class="request-queue-progress__section-title">Recent requests</div>
-            <ul v-if="recentRequests.length > 0" class="request-queue-progress__list">
-              <li v-for="request in recentRequests" :key="request.id" class="request-queue-progress__list-item">
-                <span class="request-queue-progress__method">
-                  <i class="fas" :class="getMethodIconClass(request.method)" aria-hidden="true"></i>
-                  {{ request.method }}
-                </span>
-                <span class="request-queue-progress__endpoint" :title="request.url">{{ request.url }}</span>
-                <span class="request-queue-progress__time">
-                  {{ formatDuration(request.requestDurationMs) }}
-                </span>
-              </li>
-            </ul>
-            <div v-else class="request-queue-progress__empty">No recent requests</div>
+            <div class="request-queue-progress__section-content request-queue-progress__section-content--recent">
+              <ul v-if="recentRequests.length > 0" class="request-queue-progress__list">
+                <li v-for="request in recentRequests" :key="request.id" class="request-queue-progress__list-item">
+                  <span class="request-queue-progress__method">
+                    <i class="fas" :class="getMethodIconClass(request.method)" aria-hidden="true"></i>
+                    {{ request.method }}
+                  </span>
+                  <span class="request-queue-progress__endpoint" :title="request.url">{{ request.url }}</span>
+                  <span class="request-queue-progress__time">
+                    {{ formatDuration(request.requestDurationMs) }}
+                  </span>
+                </li>
+              </ul>
+              <div v-else class="request-queue-progress__empty">No recent requests</div>
+            </div>
           </div>
         </div>
 
         <aside class="request-queue-progress__side" data-testid="request-queue-missing-permissions-box">
-          <div class="request-queue-progress__section-title">Missing permissions</div>
+          <div class="request-queue-progress__side-header">
+            <div class="request-queue-progress__section-title">Missing permissions</div>
+            <button
+              class="request-queue-progress__clear-button"
+              data-testid="request-queue-clear-permissions"
+              type="button"
+              :disabled="missingPermissions.length === 0"
+              @click="handleClearMissingPermissions"
+            >
+              Clear
+            </button>
+          </div>
+          <div class="request-queue-progress__section-content request-queue-progress__section-content--permissions">
+            <ul v-if="missingPermissions.length > 0" class="request-queue-progress__list">
+              <li
+                v-for="item in missingPermissions"
+                :key="`${item.permission}:${item.lastSeenAt}`"
+                class="request-queue-progress__list-item request-queue-progress__list-item--permission"
+              >
+                <span class="request-queue-progress__permission">{{ item.permission }}</span>
+                <span class="request-queue-progress__permission-meta">
+                  <i class="fas" :class="getMethodIconClass(item.method)" aria-hidden="true"></i>
+                  {{ item.method }}
+                </span>
+                <span class="request-queue-progress__permission-meta">
+                  {{ item.statusCode || "n/a" }} x{{ item.count }}
+                </span>
+              </li>
+            </ul>
+            <div v-else class="request-queue-progress__empty">No missing permissions detected</div>
+          </div>
         </aside>
       </div>
 
@@ -347,6 +408,7 @@ onBeforeUnmount(() => {
   grid-template-columns: minmax(250px, 1fr) minmax(520px, 720px) minmax(250px, 1fr);
   gap: 12px;
   align-items: stretch;
+  min-height: 200px;
 }
 
 .request-queue-progress__details {
@@ -355,6 +417,8 @@ onBeforeUnmount(() => {
   color: #ffffff;
   padding: 10px 12px;
   box-shadow: 0 8px 24px rgba(15, 23, 42, 0.28);
+  display: flex;
+  flex-direction: column;
 }
 
 .request-queue-progress__side {
@@ -365,6 +429,18 @@ onBeforeUnmount(() => {
   box-shadow: 0 8px 24px rgba(15, 23, 42, 0.28);
 }
 
+.request-queue-progress__side-header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 8px;
+  margin-bottom: 4px;
+}
+
+.request-queue-progress__side-header .request-queue-progress__section-title {
+  margin-bottom: 0;
+}
+
 .request-queue-progress__details-row {
   display: flex;
   justify-content: space-between;
@@ -381,12 +457,51 @@ onBeforeUnmount(() => {
   margin-top: 8px;
 }
 
+.request-queue-progress__section-content {
+  min-height: 48px;
+  max-height: 140px;
+  overflow-y: auto;
+  padding-right: 2px;
+}
+
+.request-queue-progress__section-content--active {
+  min-height: 54px;
+  max-height: 112px;
+}
+
+.request-queue-progress__section-content--recent {
+  min-height: 70px;
+  max-height: 150px;
+}
+
+.request-queue-progress__section-content--permissions {
+  min-height: 54px;
+  max-height: 220px;
+}
+
 .request-queue-progress__section-title {
   font-size: 12px;
   font-weight: 600;
   margin-bottom: 4px;
 }
 
+.request-queue-progress__clear-button {
+  border: 1px solid rgba(255, 255, 255, 0.35);
+  background: transparent;
+  color: #ffffff;
+  font-size: 11px;
+  line-height: 1;
+  border-radius: 999px;
+  padding: 3px 8px;
+  cursor: pointer;
+  white-space: nowrap;
+}
+
+.request-queue-progress__clear-button:disabled {
+  opacity: 0.45;
+  cursor: default;
+}
+
 .request-queue-progress__list {
   list-style: none;
   margin: 0;
@@ -480,6 +595,9 @@ onBeforeUnmount(() => {
 .request-queue-progress__time {
   white-space: nowrap;
   opacity: 0.88;
+  min-width: 72px;
+  text-align: right;
+  font-variant-numeric: tabular-nums;
 }
 
 .request-queue-progress__empty {
@@ -487,6 +605,25 @@ onBeforeUnmount(() => {
   color: rgba(255, 255, 255, 0.75);
 }
 
+.request-queue-progress__list-item--permission {
+  grid-template-columns: 1fr auto auto;
+}
+
+.request-queue-progress__permission {
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.request-queue-progress__permission-meta {
+  white-space: nowrap;
+  font-size: 11px;
+  opacity: 0.82;
+  display: inline-flex;
+  align-items: center;
+  gap: 4px;
+}
+
 .queue-progress-fade-enter-active,
 .queue-progress-fade-leave-active {
   transition: opacity 0.2s ease;
@@ -497,3 +634,4 @@ onBeforeUnmount(() => {
   opacity: 0;
 }
 </style>
+
diff --git a/src/config.js b/src/config.js
index b962eb3a..5c2a2c18 100644
--- a/src/config.js
+++ b/src/config.js
@@ -50,6 +50,7 @@ export const REQUEST_QUEUE_CONFIG = Object.freeze({
     timerRefreshMs: 250,
     recentRequestsLimit: 8,
     errorHistoryLimit: 10,
+    missingPermissionsLimit: 20,
     payloadMaxChars: 4000,
   }),
   // Queue progress widget behavior
diff --git a/src/services/requestQueue.js b/src/services/requestQueue.js
index 6c019037..00378b89 100644
--- a/src/services/requestQueue.js
+++ b/src/services/requestQueue.js
@@ -12,6 +12,7 @@ const queueConfig = {
   retryDelayJitterMs: REQUEST_QUEUE_CONFIG.retryDelay.jitterMs,
   recentRequestsLimit: REQUEST_QUEUE_CONFIG.inspector.recentRequestsLimit,
   errorHistoryLimit: REQUEST_QUEUE_CONFIG.inspector.errorHistoryLimit,
+  missingPermissionsLimit: REQUEST_QUEUE_CONFIG.inspector.missingPermissionsLimit,
   payloadMaxChars: REQUEST_QUEUE_CONFIG.inspector.payloadMaxChars,
 };
 
@@ -25,6 +26,7 @@ const requestQueueStateMutable = reactive({
   activeRequests: [],
   recentRequests: [],
   errorRequests: [],
+  missingPermissions: [],
 });
 
 const requestQueue = [];
@@ -107,6 +109,65 @@ const toSafeText = (value) => {
   return `${text.slice(0, maxChars)}\n... [truncated]`;
 };
 
+const parseJsonIfString = (value) => {
+  if (typeof value !== "string") {
+    return value;
+  }
+
+  const trimmedValue = value.trim();
+  if (!trimmedValue.startsWith("{") && !trimmedValue.startsWith("[")) {
+    return value;
+  }
+
+  try {
+    return JSON.parse(trimmedValue);
+  } catch (error) {
+    return value;
+  }
+};
+
+const normalizeResponseData = (value) => {
+  const parsed = parseJsonIfString(value);
+  if (!parsed || typeof parsed !== "object" || Array.isArray(parsed)) {
+    return parsed;
+  }
+
+  const parsedData = parseJsonIfString(parsed.data);
+  if (parsedData === parsed.data) {
+    return parsed;
+  }
+
+  return {
+    ...parsed,
+    data: parsedData,
+  };
+};
+
+const extractMissingPermissions = (error) => {
+  const responseData = normalizeResponseData(error?.response?.data);
+  const messageCandidates = [
+    responseData?.data?.message,
+    responseData?.message,
+    error?.message,
+  ];
+  const hasMissingPermissionMessage = messageCandidates.some((message) =>
+    typeof message === "string" && message.toLowerCase().includes("missing permission")
+  );
+
+  if (!hasMissingPermissionMessage) {
+    return [];
+  }
+
+  const permissions = responseData?.data?.permissions ?? responseData?.permissions ?? [];
+  if (!Array.isArray(permissions)) {
+    return [];
+  }
+
+  return permissions
+    .map((permission) => String(permission || "").trim())
+    .filter((permission) => permission.length > 0);
+};
+
 const getMethodConcurrencyLimit = (method) => {
   const normalizedMethod = normalizeMethod(method);
   const configuredLimit = queueConfig.concurrencyByMethod[normalizedMethod]
@@ -252,6 +313,42 @@ const pushErrorRequest = (entry) => {
   requestQueueStateMutable.errorRequests = next.slice(0, limit);
 };
 
+const pushMissingPermissions = (permissionEntries) => {
+  if (!Array.isArray(permissionEntries) || permissionEntries.length === 0) {
+    return;
+  }
+
+  const now = Date.now();
+  const existing = [...requestQueueStateMutable.missingPermissions];
+  permissionEntries.forEach(({ permission, method, url, statusCode }) => {
+    const index = existing.findIndex((item) => item.permission === permission);
+    if (index >= 0) {
+      existing[index] = {
+        ...existing[index],
+        method,
+        url,
+        statusCode,
+        count: Number(existing[index].count || 0) + 1,
+        lastSeenAt: now,
+      };
+      return;
+    }
+
+    existing.push({
+      permission,
+      method,
+      url,
+      statusCode,
+      count: 1,
+      lastSeenAt: now,
+    });
+  });
+
+  existing.sort((a, b) => Number(b.lastSeenAt || 0) - Number(a.lastSeenAt || 0));
+  const limit = Math.max(1, Number(queueConfig.missingPermissionsLimit) || 20);
+  requestQueueStateMutable.missingPermissions = existing.slice(0, limit);
+};
+
 const runJob = (job) => {
   const method = normalizeMethod(job.method);
   const startedAt = Date.now();
@@ -324,6 +421,16 @@ const runJob = (job) => {
         requestText: toSafeText(requestSnapshot),
         responseText: toSafeText(responseSnapshot),
       });
+
+      const missingPermissions = extractMissingPermissions(error);
+      pushMissingPermissions(
+        missingPermissions.map((permission) => ({
+          permission,
+          method,
+          url: job.url,
+          statusCode,
+        }))
+      );
       job.reject(error);
     })
     .finally(() => {
@@ -389,6 +496,14 @@ export const enqueueRequest = (requestFactory, options = {}) => {
 
 export const requestQueueState = readonly(requestQueueStateMutable);
 
+export const clearErrorRequests = () => {
+  requestQueueStateMutable.errorRequests = [];
+};
+
+export const clearMissingPermissions = () => {
+  requestQueueStateMutable.missingPermissions = [];
+};
+
 export const __resetRequestQueueForTests = () => {
   requestQueue.length = 0;
   activeWorkers = 0;
@@ -406,6 +521,7 @@ export const __resetRequestQueueForTests = () => {
   requestQueueStateMutable.activeRequests = [];
   requestQueueStateMutable.recentRequests = [];
   requestQueueStateMutable.errorRequests = [];
+  requestQueueStateMutable.missingPermissions = [];
 
   queueConfig.concurrencyByMethod = cloneObject(REQUEST_QUEUE_CONFIG.concurrency);
   queueConfig.spacingMs = 0;
@@ -415,6 +531,7 @@ export const __resetRequestQueueForTests = () => {
   queueConfig.retryDelayJitterMs = 0;
   queueConfig.recentRequestsLimit = REQUEST_QUEUE_CONFIG.inspector.recentRequestsLimit;
   queueConfig.errorHistoryLimit = REQUEST_QUEUE_CONFIG.inspector.errorHistoryLimit;
+  queueConfig.missingPermissionsLimit = REQUEST_QUEUE_CONFIG.inspector.missingPermissionsLimit;
   queueConfig.payloadMaxChars = REQUEST_QUEUE_CONFIG.inspector.payloadMaxChars;
 };
 
@@ -429,6 +546,7 @@ export const __configureRequestQueueForTests = ({
   retryDelayJitterMs,
   recentRequestsLimit,
   errorHistoryLimit,
+  missingPermissionsLimit,
   payloadMaxChars,
 } = {}) => {
   if (concurrencyByMethod && typeof concurrencyByMethod === "object") {
@@ -479,6 +597,10 @@ export const __configureRequestQueueForTests = ({
     queueConfig.errorHistoryLimit = Math.max(1, Math.floor(errorHistoryLimit));
   }
 
+  if (typeof missingPermissionsLimit === "number" && missingPermissionsLimit > 0) {
+    queueConfig.missingPermissionsLimit = Math.max(1, Math.floor(missingPermissionsLimit));
+  }
+
   if (typeof payloadMaxChars === "number" && payloadMaxChars >= 200) {
     queueConfig.payloadMaxChars = Math.floor(payloadMaxChars);
   }
diff --git a/tests/unit/request-queue-progress.spec.js b/tests/unit/request-queue-progress.spec.js
index 4d5dcfbc..3835831c 100644
--- a/tests/unit/request-queue-progress.spec.js
+++ b/tests/unit/request-queue-progress.spec.js
@@ -123,7 +123,12 @@ describe("RequestQueueProgress", () => {
   });
 
   it("stores errors with request and response payloads and respects configured error limit", async () => {
-    __configureRequestQueueForTests({ errorHistoryLimit: 1, payloadMaxChars: 8000 });
+    __configureRequestQueueForTests({
+      errorHistoryLimit: 1,
+      missingPermissionsLimit: 1,
+      retryByStatusCode: {},
+      payloadMaxChars: 8000
+    });
     const wrapper = mount(RequestQueueProgress);
 
     const requestOne = enqueueRequest(
@@ -144,7 +149,18 @@ describe("RequestQueueProgress", () => {
       async () => {
         throw {
           message: "Second failure",
-          response: { status: 429, data: { reason: "second" } }
+          response: {
+            status: 403,
+            data: {
+              success: false,
+              data: {
+                message: "Missing permission(s)",
+                permissions: ["department_notification_sms_get"]
+              },
+              meta: [],
+              includes: []
+            }
+          }
         };
       },
       {
@@ -160,7 +176,9 @@ describe("RequestQueueProgress", () => {
     expect(requestQueueState.errorRequests.length).toBe(1);
     expect(requestQueueState.errorRequests[0].url).toBe("/second-error");
     expect(requestQueueState.errorRequests[0].requestText).toContain("requestBody");
-    expect(requestQueueState.errorRequests[0].responseText).toContain("second");
+    expect(requestQueueState.errorRequests[0].responseText).toContain("Missing permission(s)");
+    expect(requestQueueState.missingPermissions.length).toBe(1);
+    expect(requestQueueState.missingPermissions[0].permission).toBe("department_notification_sms_get");
 
     await wrapper.get("[data-testid='request-queue-progress-toggle']").trigger("click");
     await flushManyMicrotasks();
@@ -171,6 +189,22 @@ describe("RequestQueueProgress", () => {
     expect(errorsBox.text()).toContain("Request and response data");
     expect(errorsBox.text()).toContain("Request");
     expect(errorsBox.text()).toContain("Response");
+
+    const missingPermissionsBox = wrapper.get("[data-testid='request-queue-missing-permissions-box']");
+    expect(missingPermissionsBox.text()).toContain("department_notification_sms_get");
+
+    await wrapper.get("[data-testid='request-queue-clear-errors']").trigger("click");
+    await flushManyMicrotasks();
+
+    expect(requestQueueState.errorRequests.length).toBe(0);
+    expect(wrapper.get("[data-testid='request-queue-errors-box']").text()).toContain("No stored errors");
+    expect(requestQueueState.missingPermissions.length).toBe(1);
+
+    await wrapper.get("[data-testid='request-queue-clear-permissions']").trigger("click");
+    await flushManyMicrotasks();
+
+    expect(requestQueueState.missingPermissions.length).toBe(0);
+    expect(wrapper.get("[data-testid='request-queue-missing-permissions-box']").text()).toContain("No missing permissions detected");
   });
 
   it("stays visible after errors occur", async () => {
@@ -207,4 +241,41 @@ describe("RequestQueueProgress", () => {
     expect(errorsBox.text()).toContain("Errors");
     expect(errorsBox.text()).toContain("/error-visible");
   });
+
+  it("stores missing permissions when response payload is stringified JSON", async () => {
+    __configureRequestQueueForTests({
+      missingPermissionsLimit: 5,
+      retryByStatusCode: {},
+    });
+
+    const request = enqueueRequest(
+      async () => {
+        throw {
+          message: "Request failed with status code 403",
+          response: {
+            status: 403,
+            data: JSON.stringify({
+              success: false,
+              data: {
+                message: "Missing permission(s)",
+                permissions: ["department_notification_sms_get"],
+              },
+              meta: [],
+              includes: [],
+            }),
+          },
+        };
+      },
+      {
+        method: "GET",
+        url: "/notification/sms",
+      }
+    ).catch((error) => error);
+
+    await request;
+    await flushManyMicrotasks();
+
+    expect(requestQueueState.missingPermissions.length).toBe(1);
+    expect(requestQueueState.missingPermissions[0].permission).toBe("department_notification_sms_get");
+  });
 });