diff --git a/renderer/app.js b/renderer/app.js
index e2a8fe8..953c443 100644
--- a/renderer/app.js
+++ b/renderer/app.js
@@ -723,12 +723,10 @@ async function applyAutomationEvaluation(evaluation) {
     if (await isAutomationPaused()) {
       return freezeAutomationValue({ ok: false, error: 'Automatik ist pausiert', warning: null, admittedFiles: [], deferredFiles, paused: true, dryRun: false });
     }
-    const cleanupPreparation = prepareSourceCleanup(newJobs);
+    const addRequest = createAddJobsRequest(newJobs);
+    const cleanupPreparation = addRequest.cleanupPreparation;
     try {
-      const result = await window.api.addJobsToBatch({
-        jobs: newJobs.map(serializeUploadJob),
-        sourceCleanupGroups: cleanupPreparation.groups
-      });
+      const result = await submitAddJobsRequest(addRequest);
       if (result?.error) {
         restoreSourceCleanupStates(cleanupPreparation.rollbackStates);
         const error = sanitizeUploadControlError(result.error, 'Jobs konnten nicht hinzugefügt werden.');
@@ -1529,12 +1527,10 @@ async function applyHosterSelection() {
   if (uploading && pendingPaths.size > 0 && !(await isAutomationPaused())) {
     const newJobs = queueJobs.filter(j => j.status === 'preview' && pendingPaths.has(j.file));
     if (newJobs.length > 0) {
-      const cleanupPreparation = prepareSourceCleanup(newJobs);
+      const addRequest = createAddJobsRequest(newJobs);
+      const cleanupPreparation = addRequest.cleanupPreparation;
       try {
-        const result = await window.api.addJobsToBatch({
-          jobs: newJobs.map(serializeUploadJob),
-          sourceCleanupGroups: cleanupPreparation.groups
-        });
+        const result = await submitAddJobsRequest(addRequest);
         if (result?.error) {
           regularInjectionFailure = sanitizeUploadControlError(result.error, 'Jobs konnten nicht hinzugefügt werden.');
           restoreSourceCleanupStates(cleanupPreparation.rollbackStates);
@@ -3789,13 +3785,54 @@ function sanitizeUploadControlError(error, fallback) {
   return /pausiert/i.test(message) ? 'Automatik ist pausiert' : fallback;
 }
 
-function resolveAddJobsOutcome(jobs, result) {
+function analyzeAddJobsInput(jobs) {
   const inputJobs = Array.isArray(jobs) ? jobs : [];
-  const jobsById = new Map(inputJobs.filter(job => job?.id).map(job => [job.id, job]));
+  const idCounts = new Map();
+  for (const job of inputJobs) {
+    const id = job?.id;
+    if (typeof id !== 'string' || id.trim().length === 0) continue;
+    idCounts.set(id, (idCounts.get(id) || 0) + 1);
+  }
+  const sendableJobs = [];
+  const unconfirmableJobs = [];
+  const jobsById = new Map();
+  for (const job of inputJobs) {
+    if (typeof job?.id === 'string' && job.id.trim().length > 0 && idCounts.get(job.id) === 1) {
+      sendableJobs.push(job);
+      jobsById.set(job.id, job);
+    } else {
+      unconfirmableJobs.push(job);
+    }
+  }
+  return { inputJobs, sendableJobs, unconfirmableJobs, jobsById };
+}
+
+function createAddJobsRequest(jobs) {
+  const analysis = analyzeAddJobsInput(jobs);
+  const cleanupPreparation = analysis.sendableJobs.length > 0
+    ? prepareSourceCleanup(analysis.sendableJobs)
+    : { groups: [], rollbackStates: [] };
+  return {
+    ...analysis,
+    cleanupPreparation,
+    payload: {
+      jobs: analysis.sendableJobs.map(serializeUploadJob),
+      sourceCleanupGroups: cleanupPreparation.groups
+    }
+  };
+}
+
+async function submitAddJobsRequest(request) {
+  if (request.sendableJobs.length === 0) return { added: 0 };
+  return window.api.addJobsToBatch(request.payload);
+}
+
+function resolveAddJobsOutcome(jobs, result) {
+  const { sendableJobs, unconfirmableJobs, jobsById } = analyzeAddJobsInput(jobs);
   const skippedEntries = [];
   const skippedIds = new Set();
   const alreadyIds = new Set();
-  let valid = jobsById.size === inputJobs.length;
+  let valid = true;
   for (const entry of Array.isArray(result?.skippedJobs) ? result.skippedJobs : []) {
     const id = entry?.jobId;
     if (!jobsById.has(id) || skippedIds.has(id)) {
@@ -3812,17 +3849,17 @@ function resolveAddJobsOutcome(jobs, result) {
     }
     alreadyIds.add(id);
   }
-  const remainingJobs = inputJobs.filter(job => !skippedIds.has(job.id) && !alreadyIds.has(job.id));
+  const remainingJobs = sendableJobs.filter(job => !skippedIds.has(job.id) && !alreadyIds.has(job.id));
   const added = Number(result?.added);
-  const consistent = valid && Number.isInteger(added) && added >= 0 && added === remainingJobs.length;
+  const confirmationConsistent = valid && Number.isInteger(added) && added >= 0 && added === remainingJobs.length;
   return {
-    consistent,
+    consistent: unconfirmableJobs.length === 0 && confirmationConsistent,
     added: Number.isInteger(added) && added >= 0 ? added : 0,
-    addedJobs: consistent ? remainingJobs : [],
+    addedJobs: confirmationConsistent ? remainingJobs : [],
     alreadyJobs: [...alreadyIds].map(id => jobsById.get(id)),
     skippedEntries,
     skippedJobs: skippedEntries.map(entry => jobsById.get(entry.jobId)),
-    unconfirmedJobs: consistent ? [] : remainingJobs
+    unconfirmedJobs: [...unconfirmableJobs, ...(confirmationConsistent ? [] : remainingJobs)]
   };
 }
 
@@ -3963,7 +4000,8 @@ async function startSelectedUpload(explicitJobs) {
     }
     {
       const originalStates = captureUploadJobStates(addable);
-      const cleanupPreparation = prepareSourceCleanup(addable);
+      const addRequest = createAddJobsRequest(addable);
+      const cleanupPreparation = addRequest.cleanupPreparation;
       addable.forEach(j => {
         j.status = 'queued'; j.error = null; j.result = null;
         j.bytesUploaded = 0; j.speedKbs = 0; j.progress = 0; j.uploadId = null;
@@ -3971,10 +4009,7 @@ async function startSelectedUpload(explicitJobs) {
       renderQueueTable();
       let result = null;
       try {
-        result = await window.api.addJobsToBatch({
-          jobs: addable.map(serializeUploadJob),
-          sourceCleanupGroups: cleanupPreparation.groups
-        });
+        result = await submitAddJobsRequest(addRequest);
       } catch (err) {
         restoreSourceCleanupStates(cleanupPreparation.rollbackStates);
         restoreUploadJobStates(originalStates);
diff --git a/tests/startup-renderer.test.js b/tests/startup-renderer.test.js
index c7530d9..ea6fd9e 100644
--- a/tests/startup-renderer.test.js
+++ b/tests/startup-renderer.test.js
@@ -253,7 +253,7 @@ contextBridge.exposeInMainWorld('api', {
   },
   addJobsToBatch(payload) {
     folderMonitorProbeCalls.push(['inject', payload?.jobs?.length || 0]);
-    automationProbe.mutationCalls.push(['inject', payload?.jobs?.length || 0]);
+    automationProbe.mutationCalls.push(['inject', payload?.jobs?.length || 0, (payload?.jobs || []).map(job => job.id)]);
     if (automationProbe.addError) return Promise.reject(new Error(automationProbe.addError));
     if (automationProbe.addMode === 'partial-consistent' && payload?.jobs?.length >= 4) {
       return Promise.resolve({
@@ -1179,6 +1179,137 @@ contextBridge.exposeInMainWorld('api', {
       }
     };
 
+    const resolverMissingJob = makePauseRaceJob('resolver-missing.mkv');
+    delete resolverMissingJob.id;
+    const collisionJobs = [
+      { ...makePauseRaceJob('resolver-duplicate-a.mkv'), id: 'resolver-duplicate' },
+      { ...makePauseRaceJob('resolver-duplicate-b.mkv'), id: 'resolver-duplicate' },
+      resolverMissingJob,
+      { ...makePauseRaceJob('resolver-unique.mkv'), id: 'resolver-unique' }
+    ];
+    const cleanCollisionOutcome = resolveAddJobsOutcome(collisionJobs, { added: 1 });
+    const hostileCollisionOutcome = resolveAddJobsOutcome(collisionJobs, {
+      added: 1,
+      alreadyInBatchJobIds: ['resolver-duplicate'],
+      skippedJobs: [{ reason: 'Ungültig' }]
+    });
+    const summarizeCollisionOutcome = outcome => ({
+      consistent: outcome.consistent,
+      added: outcome.addedJobs.map(job => job.fileName),
+      already: outcome.alreadyJobs.map(job => job.fileName),
+      skipped: outcome.skippedJobs.map(job => job.fileName),
+      unconfirmed: outcome.unconfirmedJobs.map(job => job.fileName)
+    });
+    const collisionResolver = {
+      clean: summarizeCollisionOutcome(cleanCollisionOutcome),
+      hostile: summarizeCollisionOutcome(hostileCollisionOutcome)
+    };
+
+    const applyCollisionCleanupFixture = (job, index) => {
+      job.sourceCleanupToken = 'collision-token-' + index;
+      job.sourceCleanupRequiredHosters = ['required-' + index];
+      job.sourceCleanupCompletedHosters = ['completed-' + index];
+      job.sourceCleanupFingerprint = { index, nested: ['before-' + index] };
+      return job;
+    };
+    const summarizeCollisionPath = async (jobs, result, before) => {
+      const probe = await window.api.getAutomationProbeState();
+      const inject = probe.mutationCalls.find(call => call[0] === 'inject');
+      return {
+        result,
+        sentIds: inject?.[2] || [],
+        statuses: jobs.map(job => job.status),
+        invalidRestored: jobs.slice(0, 3).map((job, index) => JSON.stringify(job) === before[index])
+      };
+    };
+
+    configureAtomicState(0);
+    config.globalSettings.deleteSourceAfterSuccessfulUpload = true;
+    uploading = true;
+    const activeMissingJob = makePauseRaceJob('active-missing.mkv');
+    delete activeMissingJob.id;
+    const activeCollisionJobs = [
+      { ...makePauseRaceJob('active-duplicate-a.mkv'), id: 'active-duplicate' },
+      { ...makePauseRaceJob('active-duplicate-b.mkv'), id: 'active-duplicate' },
+      activeMissingJob,
+      { ...makePauseRaceJob('active-unique.mkv'), id: 'active-unique' }
+    ].map(applyCollisionCleanupFixture);
+    queueJobs = activeCollisionJobs;
+    rebuildJobIndex();
+    const activeCollisionBefore = activeCollisionJobs.slice(0, 3).map(job => JSON.stringify(job));
+    window.api.configureAutomationProbe({ paused: false, addResult: { added: 1 } });
+    const activeCollisionResult = await startSelectedUpload(activeCollisionJobs);
+    const activeCollision = await summarizeCollisionPath(activeCollisionJobs, activeCollisionResult, activeCollisionBefore);
+
+    configureAtomicState(0);
+    config.globalSettings.deleteSourceAfterSuccessfulUpload = true;
+    selectedFiles = [];
+    uploading = true;
+    const manualCollisionFile = { path: 'C:\\collision\\manual.mkv', name: 'manual.mkv', size: 1 };
+    _pendingFiles = [manualCollisionFile];
+    _pendingImportInspection = { candidateCount: 1, duplicateCount: 0, unavailableCount: 0, accepted: [manualCollisionFile] };
+    _pendingImportInspections = 0;
+    _pendingFolderMonitorAutoStart.clear();
+    const manualCollisionInputs = hosters.map(hoster => {
+      const input = document.createElement('input');
+      input.type = 'checkbox';
+      input.dataset.hosterModal = hoster;
+      input.checked = true;
+      return input;
+    });
+    document.getElementById('hosterModalList').replaceChildren(...manualCollisionInputs);
+    const originalBuildQueuePreviewForCollision = buildQueuePreview;
+    let manualCollisionJobs = [];
+    let manualCollisionBefore = [];
+    buildQueuePreview = () => {
+      originalBuildQueuePreviewForCollision();
+      manualCollisionJobs = queueJobs.filter(job => job.file === manualCollisionFile.path);
+      manualCollisionJobs[0].id = 'manual-duplicate';
+      manualCollisionJobs[1].id = 'manual-duplicate';
+      delete manualCollisionJobs[2].id;
+      manualCollisionJobs[3].id = 'manual-unique';
+      manualCollisionJobs.forEach(applyCollisionCleanupFixture);
+      manualCollisionBefore = manualCollisionJobs.slice(0, 3).map(job => JSON.stringify(job));
+      rebuildJobIndex();
+    };
+    window.api.configureAutomationProbe({ paused: false, addResult: { added: 1 } });
+    const manualCollisionResult = await applyHosterSelection();
+    buildQueuePreview = originalBuildQueuePreviewForCollision;
+    const manualCollision = await summarizeCollisionPath(manualCollisionJobs, manualCollisionResult, manualCollisionBefore);
+
+    configureAtomicState(0);
+    config.globalSettings.deleteSourceAfterSuccessfulUpload = true;
+    config.globalSettings.folderMonitor.hosters = hosters.slice();
+    config.globalSettings.folderMonitor.autoStart = true;
+    selectedFiles = [];
+    uploading = true;
+    const automationCollisionFile = { path: 'C:\\collision\\automation.mkv', name: 'automation.mkv', size: 1, mtimeMs: 1 };
+    const originalCreateAutomationPreviewJobForCollision = createAutomationPreviewJob;
+    const automationCollisionJobs = [];
+    const automationCollisionBefore = [];
+    createAutomationPreviewJob = (file, hoster) => {
+      const job = originalCreateAutomationPreviewJobForCollision(file, hoster);
+      const index = automationCollisionJobs.length;
+      if (index < 2) job.id = 'automation-duplicate';
+      else if (index === 2) delete job.id;
+      else job.id = 'automation-unique';
+      applyCollisionCleanupFixture(job, index);
+      automationCollisionJobs.push(job);
+      if (index < 3) automationCollisionBefore.push(JSON.stringify(job));
+      return job;
+    };
+    window.api.configureAutomationProbe({ paused: false, addResult: { added: 1 } });
+    const automationCollisionEvaluation = await evaluateAutomationCandidates([automationCollisionFile], { dryRun: false, trigger: 'watcher' });
+    const automationCollisionResult = await applyAutomationEvaluation(automationCollisionEvaluation);
+    createAutomationPreviewJob = originalCreateAutomationPreviewJobForCollision;
+    const automationCollision = await summarizeCollisionPath(automationCollisionJobs, {
+      ok: automationCollisionResult.ok,
+      error: automationCollisionResult.error,
+      admitted: automationCollisionResult.admittedFiles.map(file => file.name)
+    }, automationCollisionBefore);
+    uploading = false;
+    const collisionAdmission = { active: activeCollision, manual: manualCollision, automation: automationCollision };
+
     configureAtomicState(0);
     selectedFiles = [];
     config.globalSettings.folderMonitor.autoStart = true;
@@ -1371,7 +1502,7 @@ contextBridge.exposeInMainWorld('api', {
       startCalls: pausedProbe.mutationCalls.filter(call => call[0] === 'start').length,
       injectCalls: pausedProbe.mutationCalls.filter(call => call[0] === 'inject').length
     };
-    return { dry, manualTest, historyEvidence, pendingDedup, manualHostTransactional, atomic, status, persistedQueueExactness, stale, replannedEligibility, mainPauseResponses, cleanupRollback, crossPathCleanupRollback, partialAddOutcomes, pauseBetweenApplyAndStart, startAcceptance, fulfilledFeedback, injectionOutcomes, paused };
+    return { dry, manualTest, historyEvidence, pendingDedup, manualHostTransactional, atomic, status, persistedQueueExactness, stale, replannedEligibility, mainPauseResponses, cleanupRollback, crossPathCleanupRollback, partialAddOutcomes, collisionResolver, collisionAdmission, pauseBetweenApplyAndStart, startAcceptance, fulfilledFeedback, injectionOutcomes, paused };
   })()`;
   const onlineBackupBehaviorScript = `(async () => {
     const ids = {
@@ -1950,6 +2081,42 @@ app.whenReady().then(async () => {
         }
       }
     });
+    assert.deepEqual(result.automationPipeline.collisionResolver, {
+      clean: {
+        consistent: false,
+        added: ['resolver-unique.mkv'],
+        already: [],
+        skipped: [],
+        unconfirmed: ['resolver-duplicate-a.mkv', 'resolver-duplicate-b.mkv', 'resolver-missing.mkv']
+      },
+      hostile: {
+        consistent: false,
+        added: [],
+        already: [],
+        skipped: [],
+        unconfirmed: ['resolver-duplicate-a.mkv', 'resolver-duplicate-b.mkv', 'resolver-missing.mkv', 'resolver-unique.mkv']
+      }
+    });
+    assert.deepEqual(result.automationPipeline.collisionAdmission, {
+      active: {
+        result: { ok: false, error: 'Jobs konnten nicht eindeutig bestätigt werden.' },
+        sentIds: ['active-unique'],
+        statuses: ['preview', 'preview', 'preview', 'queued'],
+        invalidRestored: [true, true, true]
+      },
+      manual: {
+        result: { ok: false, error: 'Jobs konnten nicht eindeutig bestätigt werden.' },
+        sentIds: ['manual-unique'],
+        statuses: ['preview', 'preview', 'preview', 'queued'],
+        invalidRestored: [true, true, true]
+      },
+      automation: {
+        result: { ok: false, error: 'Jobs konnten nicht eindeutig bestätigt werden.', admitted: [] },
+        sentIds: ['automation-unique'],
+        statuses: ['preview', 'preview', 'preview', 'queued'],
+        invalidRestored: [true, true, true]
+      }
+    });
     assert.deepEqual(result.automationPipeline.pauseBetweenApplyAndStart, {
       result: {
         ok: false,