diff --git a/frontend/src/components/MobileOrders.css b/frontend/src/components/MobileOrders.css
index bed15cd..ad6fee0 100644
--- a/frontend/src/components/MobileOrders.css
+++ b/frontend/src/components/MobileOrders.css
@@ -244,6 +244,79 @@
   margin-bottom: 13px;
 }
 
+.mobile-panel-heading {
+  align-items: center;
+  display: flex;
+  justify-content: space-between;
+  gap: 12px;
+  margin-bottom: 10px;
+}
+
+.mobile-panel-heading h3 {
+  margin-bottom: 2px;
+}
+
+.mobile-panel-heading span {
+  color: #64748b;
+  font-size: 0.84rem;
+  font-weight: 700;
+}
+
+.mobile-panel-heading > strong {
+  border-radius: 999px;
+  font-size: 0.82rem;
+  padding: 6px 10px;
+}
+
+.mobile-panel-heading > strong.ready {
+  background: #ecfdf5;
+  color: #166534;
+}
+
+.mobile-panel-heading > strong.missing {
+  background: #fff7ed;
+  color: #9a3412;
+}
+
+.mobile-progress {
+  background: #e2e8f0;
+  border-radius: 999px;
+  height: 8px;
+  margin-bottom: 12px;
+  overflow: hidden;
+}
+
+.mobile-progress span {
+  background: #2563eb;
+  display: block;
+  height: 100%;
+  transition: width 160ms ease;
+}
+
+.mobile-readiness-box {
+  background: #fff7ed;
+  border: 1px solid #fed7aa;
+  border-radius: 7px;
+  color: #7c2d12;
+  display: grid;
+  gap: 7px;
+  margin-bottom: 13px;
+  padding: 10px 12px;
+}
+
+.mobile-readiness-box.warning {
+  background: #f8fafc;
+  border-color: #cbd5e1;
+  color: #334155;
+}
+
+.mobile-readiness-box ul {
+  display: grid;
+  gap: 4px;
+  margin: 0;
+  padding-left: 18px;
+}
+
 .mobile-question-list,
 .mobile-history-list {
   display: grid;
diff --git a/frontend/src/components/MobileOrders.js b/frontend/src/components/MobileOrders.js
index 857f902..6fb7946 100644
--- a/frontend/src/components/MobileOrders.js
+++ b/frontend/src/components/MobileOrders.js
@@ -16,10 +16,56 @@ const formatNumber = (value, digits = 0) => {
 };
 
 const buildInitialAnswers = (questions = []) => questions.reduce((acc, question) => {
-  acc[question.key] = question.inputType === 'boolean' ? false : '';
+  acc[question.key] = question.inputType === 'boolean' && question.required ? null : '';
   return acc;
 }, {});
 
+const isPositiveNumber = (value) => {
+  const number = Number(String(value ?? '').replace(',', '.'));
+  return Number.isFinite(number) && number > 0;
+};
+
+const isQuestionAnswered = (question, value) => {
+  if (!question.required) return true;
+  if (question.inputType === 'boolean') return value === true || value === false;
+  if (question.inputType === 'number') return isPositiveNumber(value);
+  return String(value ?? '').trim().length > 0;
+};
+
+export const buildMobileReadiness = ({ questions = [], answers = {}, measuredData = {}, attachments = [] }) => {
+  const requiredQuestions = questions.filter((question) => question.required);
+  const missingRequired = requiredQuestions
+    .filter((question) => !isQuestionAnswered(question, answers[question.key]))
+    .map((question) => question.label);
+  const missing = [...missingRequired];
+  const suggestions = [];
+
+  if (!isPositiveNumber(measuredData.area)) {
+    missing.push('Areal');
+  }
+
+  if (!String(measuredData.accessNotes || '').trim()) {
+    suggestions.push('Adgangsnoter');
+  }
+
+  if (!attachments.length) {
+    suggestions.push('Billeder eller dokumentation');
+  }
+
+  const completedRequired = requiredQuestions.length - missingRequired.length;
+  const totalRequired = requiredQuestions.length + 1;
+  const completed = completedRequired + (isPositiveNumber(measuredData.area) ? 1 : 0);
+
+  return {
+    ready: missing.length === 0,
+    missing,
+    suggestions,
+    completed,
+    total: totalRequired,
+    percent: totalRequired > 0 ? Math.round((completed / totalRequired) * 100) : 100
+  };
+};
+
 const MobileOrders = ({ apiBaseUrl = '' }) => {
   const [orders, setOrders] = useState([]);
   const [selectedCaseNumber, setSelectedCaseNumber] = useState(null);
@@ -44,6 +90,13 @@ const MobileOrders = ({ apiBaseUrl = '' }) => {
     [orders, selectedCaseNumber, detail]
   );
 
+  const readiness = useMemo(() => buildMobileReadiness({
+    questions: detail?.checklist?.questions || [],
+    answers,
+    measuredData,
+    attachments: detail?.attachments || []
+  }), [answers, detail, measuredData]);
+
   const apiPath = (path) => `${apiBaseUrl}${path}`;
 
   const loadOrders = async () => {
@@ -194,6 +247,11 @@ const MobileOrders = ({ apiBaseUrl = '' }) => {
   };
 
   const createDraft = async () => {
+    if (!readiness.ready) {
+      setError(`Mangler før desktop-review: ${readiness.missing.join(', ')}`);
+      return;
+    }
+
     let intake = latestIntakeId ? { id: latestIntakeId } : null;
     if (!intake) {
       intake = await saveIntake('ready_for_review');
@@ -227,6 +285,27 @@ const MobileOrders = ({ apiBaseUrl = '' }) => {
   const renderQuestion = (question) => {
     const value = answers[question.key];
     if (question.inputType === 'boolean') {
+      if (question.required) {
+        return (
+          <label className="mobile-field" key={question.key}>
+            <span>{question.label}</span>
+            <select
+              value={value === true ? 'yes' : value === false ? 'no' : ''}
+              onChange={(event) => {
+                const nextValue = event.target.value === ''
+                  ? null
+                  : event.target.value === 'yes';
+                updateAnswer(question, nextValue);
+              }}
+            >
+              <option value="">Vælg</option>
+              <option value="yes">Ja</option>
+              <option value="no">Nej</option>
+            </select>
+          </label>
+        );
+      }
+
       return (
         <label className="mobile-toggle" key={question.key}>
           <input
@@ -352,7 +431,34 @@ const MobileOrders = ({ apiBaseUrl = '' }) => {
 
             <div className="mobile-work-grid">
               <div className="mobile-panel">
-                <h3>Feltcheckliste</h3>
+                <div className="mobile-panel-heading">
+                  <div>
+                    <h3>Feltcheckliste</h3>
+                    <span>{readiness.completed}/{readiness.total} klar</span>
+                  </div>
+                  <strong className={readiness.ready ? 'ready' : 'missing'}>
+                    {readiness.ready ? 'Klar' : `${readiness.percent}%`}
+                  </strong>
+                </div>
+                <div className="mobile-progress" aria-label={`Feltcheckliste ${readiness.percent}% udfyldt`}>
+                  <span style={{ width: `${readiness.percent}%` }} />
+                </div>
+                {!readiness.ready && (
+                  <div className="mobile-readiness-box">
+                    <strong>Mangler før desktop-review</strong>
+                    <ul>
+                      {readiness.missing.map((item) => <li key={item}>{item}</li>)}
+                    </ul>
+                  </div>
+                )}
+                {readiness.ready && readiness.suggestions.length > 0 && (
+                  <div className="mobile-readiness-box warning">
+                    <strong>Godt at få med</strong>
+                    <ul>
+                      {readiness.suggestions.map((item) => <li key={item}>{item}</li>)}
+                    </ul>
+                  </div>
+                )}
                 <div className="mobile-question-list">
                   {(detail.checklist?.questions || []).map(renderQuestion)}
                 </div>
@@ -395,7 +501,15 @@ const MobileOrders = ({ apiBaseUrl = '' }) => {
 
                 <div className="mobile-actions">
                   <button type="button" onClick={() => saveIntake('draft')} disabled={saving}>Gem</button>
-                  <button type="button" className="primary" onClick={createDraft} disabled={saving}>Lav tilbudskladde</button>
+                  <button
+                    type="button"
+                    className="primary"
+                    onClick={createDraft}
+                    disabled={saving || !readiness.ready}
+                    title={!readiness.ready ? `Mangler: ${readiness.missing.join(', ')}` : undefined}
+                  >
+                    Lav tilbudskladde
+                  </button>
                 </div>
               </div>
 
diff --git a/frontend/src/components/MobileOrders.test.js b/frontend/src/components/MobileOrders.test.js
new file mode 100644
index 0000000..4a51125
--- /dev/null
+++ b/frontend/src/components/MobileOrders.test.js
@@ -0,0 +1,35 @@
+import { buildMobileReadiness } from './MobileOrders';
+
+describe('MobileOrders readiness', () => {
+  const questions = [
+    { key: 'slope', label: 'Fald kontrolleret', inputType: 'boolean', required: true },
+    { key: 'drains', label: 'Afløb optalt', inputType: 'number', required: true },
+    { key: 'notes', label: 'Ekstra note', inputType: 'select', required: false }
+  ];
+
+  test('blocks desktop review until required checklist items and area are complete', () => {
+    const readiness = buildMobileReadiness({
+      questions,
+      answers: { drains: '' },
+      measuredData: { area: '' },
+      attachments: []
+    });
+
+    expect(readiness.ready).toBe(false);
+    expect(readiness.missing).toEqual(['Fald kontrolleret', 'Afløb optalt', 'Areal']);
+    expect(readiness.percent).toBe(0);
+  });
+
+  test('allows review when required checks and area are complete', () => {
+    const readiness = buildMobileReadiness({
+      questions,
+      answers: { slope: false, drains: '2' },
+      measuredData: { area: '124,5', accessNotes: 'Stillads fra indkørsel' },
+      attachments: [{ id: 1 }]
+    });
+
+    expect(readiness.ready).toBe(true);
+    expect(readiness.missing).toEqual([]);
+    expect(readiness.percent).toBe(100);
+  });
+});