diff --git a/package.json b/package.json
index f31ee59..6ee5c54 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@govoplan/campaign-webui",
-  "version": "0.1.26",
+  "version": "0.1.27",
   "private": true,
   "type": "module",
   "main": "webui/src/index.ts",
diff --git a/pyproject.toml b/pyproject.toml
index 053f248..3ef3939 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "govoplan-campaign"
-version = "0.1.26"
+version = "0.1.27"
 description = "GovOPlaN campaigns module with backend and WebUI integration."
 readme = "README.md"
 requires-python = ">=3.12"
diff --git a/src/govoplan_campaign/backend/manifest.py b/src/govoplan_campaign/backend/manifest.py
index e035eb2..b08120c 100644
--- a/src/govoplan_campaign/backend/manifest.py
+++ b/src/govoplan_campaign/backend/manifest.py
@@ -463,8 +463,8 @@ def _campaigns_router(context: ModuleContext):
 manifest = ModuleManifest(
     id="campaigns",
     name="Campaigns",
-    version="0.1.26",
-    workflow_definitions=campaign_workflow_definitions(module_version="0.1.26"),
+    version="0.1.27",
+    workflow_definitions=campaign_workflow_definitions(module_version="0.1.27"),
     required_capabilities=(
         CAPABILITY_AUTH_PRINCIPAL_RESOLVER,
         CAPABILITY_AUTH_PERMISSION_EVALUATOR,
diff --git a/webui/package.json b/webui/package.json
index 8bccd6d..1746ff2 100644
--- a/webui/package.json
+++ b/webui/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@govoplan/campaign-webui",
-  "version": "0.1.26",
+  "version": "0.1.27",
   "private": true,
   "type": "module",
   "main": "src/index.ts",
diff --git a/webui/src/features/campaigns/AttachmentsDataPage.tsx b/webui/src/features/campaigns/AttachmentsDataPage.tsx
index f8a59c1..ce54395 100644
--- a/webui/src/features/campaigns/AttachmentsDataPage.tsx
+++ b/webui/src/features/campaigns/AttachmentsDataPage.tsx
@@ -615,6 +615,8 @@ function zipArchiveColumns({ disabled, archives, invalidNameIndexes, onEditName,
       value={archive.method}
       disabled={disabled}
       aria-label="Archive password encryption"
+      data-help-context-id="campaign.archive-encryption"
+      data-help-module-id="campaigns"
       onChange={(event) => {
         const method = event.target.value === "zip_standard" ? "zip_standard" : "aes";
         patchArchive(index, method === "zip_standard" ? {
@@ -640,6 +642,8 @@ function zipArchiveColumns({ disabled, archives, invalidNameIndexes, onEditName,
         value={archive.password_delivery_channel}
         disabled={disabled || !archive.password_enabled}
         aria-label="Separate password-delivery channel"
+        data-help-context-id="campaign.archive-encryption"
+        data-help-module-id="campaigns"
         onChange={(event) => patchArchive(index, { password_delivery_channel: event.target.value as AttachmentZipArchive["password_delivery_channel"] })}>
         {(["separate_mail", "sms", "letter", "phone", "in_person"] as const).map((channel) =>
           <option key={channel} value={channel} disabled={!allowedDeliveryChannels.includes(channel)}>{passwordDeliveryChannelLabel(channel)}</option>
@@ -653,6 +657,8 @@ function zipArchiveColumns({ disabled, archives, invalidNameIndexes, onEditName,
       <div className="campaign-legacy-zipcrypto-acknowledgement">
         <ToggleSwitch
           label="I acknowledge that ZipCrypto encryption is weak"
+          helpContextId="campaign.archive-encryption"
+          helpModuleId="campaigns"
           checked={archive.legacy_zipcrypto_acknowledged}
           disabled={disabled || !legacyAllowed || !canUseLegacy}
           onChange={(checked) => patchArchive(index, { legacy_zipcrypto_acknowledged: checked })} />
@@ -663,6 +669,8 @@ function zipArchiveColumns({ disabled, archives, invalidNameIndexes, onEditName,
           maxLength={1000}
           placeholder="Operational reason (at least 10 characters)"
           aria-label="Reason for weak legacy encryption"
+          data-help-context-id="campaign.archive-encryption"
+          data-help-module-id="campaigns"
           onChange={(event) => patchArchive(index, { legacy_zipcrypto_reason: event.target.value })} />
       </div> : <span>Not required for AES</span>,
     value: (archive) => archive.legacy_zipcrypto_reason
diff --git a/webui/src/features/campaigns/CampaignOverviewPage.tsx b/webui/src/features/campaigns/CampaignOverviewPage.tsx
index c3f6bd4..bf58ca0 100644
--- a/webui/src/features/campaigns/CampaignOverviewPage.tsx
+++ b/webui/src/features/campaigns/CampaignOverviewPage.tsx
@@ -433,6 +433,8 @@ export default function CampaignOverviewPage({ settings, auth, campaignId }: {se
         destructiveActions={<>
           {canDelete && <Button
             variant="danger"
+            helpContextId="campaign.overview"
+            helpModuleId="campaigns"
             onClick={() => void prepareLifecycleAction("delete_campaign")}
             disabled={loading || savingIdentity || lockBusy || lifecycleBusy || identityDirty}
             disabledReason={identityDirty ? "Save or discard overview changes before deleting." : undefined}>
diff --git a/webui/src/features/campaigns/CampaignReportPage.tsx b/webui/src/features/campaigns/CampaignReportPage.tsx
index e33ad71..1857df6 100644
--- a/webui/src/features/campaigns/CampaignReportPage.tsx
+++ b/webui/src/features/campaigns/CampaignReportPage.tsx
@@ -537,7 +537,7 @@ export default function CampaignReportPage({ settings, campaignId }: {settings:
               <Button onClick={() => void retryFailedSynchronously(failedRowsOnPage)} disabled={!version || Boolean(busyAction) || failedRowsOnPage.length === 0}>
                 {busyAction === "retry-sync-page" ? "Sending failed jobs..." : `Retry failed on this page now (${failedRowsOnPage.length})`}
               </Button>
-              <Button onClick={() => void runExplicitAction("unattempted")} disabled={!version || Boolean(busyAction)}>i18n:govoplan-campaign.send_unattempted_jobs.db7acc9f</Button>
+              <Button helpContextId="campaign.report" helpModuleId="campaigns" onClick={() => void runExplicitAction("unattempted")} disabled={!version || Boolean(busyAction)}>i18n:govoplan-campaign.send_unattempted_jobs.db7acc9f</Button>
             </div>
           </Card>
         </ContentGrid>
@@ -591,7 +591,7 @@ export default function CampaignReportPage({ settings, campaignId }: {settings:
         footer={
         <div className="button-row">
             <Button onClick={() => setEmailOpen(false)} disabled={busyAction === "email"}>i18n:govoplan-campaign.cancel.77dfd213</Button>
-            <Button variant="primary" onClick={() => void sendReportEmail()} disabled={!emailRecipients.trim() || busyAction === "email"}>i18n:govoplan-campaign.send_report.a5b32af9</Button>
+            <Button variant="primary" helpContextId="campaign.report" helpModuleId="campaigns" onClick={() => void sendReportEmail()} disabled={!emailRecipients.trim() || busyAction === "email"}>i18n:govoplan-campaign.send_report.a5b32af9</Button>
           </div>
         }>
         
diff --git a/webui/src/features/campaigns/CampaignWorkPage.tsx b/webui/src/features/campaigns/CampaignWorkPage.tsx
index 1d437c2..29cb708 100644
--- a/webui/src/features/campaigns/CampaignWorkPage.tsx
+++ b/webui/src/features/campaigns/CampaignWorkPage.tsx
@@ -359,7 +359,7 @@ export default function CampaignWorkPage({
                     ) : null}
                     {canComplete && (assignment.status === "open" || assignment.status === "in_progress") ? (
                       <span className="campaign-work-destructive-action">
-                        <Button variant="danger" onClick={() => setRejecting(assignment)} disabled={Boolean(busyId)}>
+                        <Button variant="danger" helpContextId="campaign.work.action.reject" helpModuleId="campaigns" onClick={() => setRejecting(assignment)} disabled={Boolean(busyId)}>
                           Reject work
                         </Button>
                       </span>
diff --git a/webui/src/features/campaigns/GlobalSettingsPage.tsx b/webui/src/features/campaigns/GlobalSettingsPage.tsx
index 5a552be..275aa2b 100644
--- a/webui/src/features/campaigns/GlobalSettingsPage.tsx
+++ b/webui/src/features/campaigns/GlobalSettingsPage.tsx
@@ -379,6 +379,8 @@ export default function GlobalSettingsPage({ settings, auth, campaignId, view =
                 <FormGrid columns={2} collapseAt="wide" className="">
                   <ToggleSwitch
                     label="Send individualized invitations"
+                    helpContextId="campaign.global-settings"
+                    helpModuleId="campaigns"
                     checked={getBool(calendarInvitation, "enabled")}
                     disabled={locked || !calendarCatalog.available || !mailModuleInstalled}
                     onChange={(checked) => patch(["delivery", "calendar_invitation", "enabled"], checked)}
diff --git a/webui/src/features/campaigns/MailSettingsPage.tsx b/webui/src/features/campaigns/MailSettingsPage.tsx
index 66c657b..9ecb9cc 100644
--- a/webui/src/features/campaigns/MailSettingsPage.tsx
+++ b/webui/src/features/campaigns/MailSettingsPage.tsx
@@ -383,7 +383,7 @@ export default function MailSettingsPage({ settings, campaignId, view = "setting
             title="i18n:govoplan-campaign.reusable_mail_profile.f9c9aab1"
             actions={<div className="button-row compact-actions">
               <Button onClick={() => void refreshMailProfiles()} disabled={profilesLoading}>{profilesLoading ? "i18n:govoplan-campaign.loading.33ce4174" : "i18n:govoplan-campaign.reload_profiles.0fe100d1"}</Button>
-              <Button variant="primary" onClick={openCredentialDialog} disabled={locked || profilesLoading || !selectedProfile || !selectedSmtpServer && !selectedImapServer}>Add campaign credential</Button>
+              <Button variant="primary" helpContextId="campaign.server-settings" helpModuleId="campaigns" onClick={openCredentialDialog} disabled={locked || profilesLoading || !selectedProfile || !selectedSmtpServer && !selectedImapServer}>Add campaign credential</Button>
             </div>}>
             <p className="muted small-note">The campaign stores stable references to the envelope, selected servers, and credentials.</p>
             <FormGrid columns={2} collapseAt="wide" className="">
@@ -399,8 +399,8 @@ export default function MailSettingsPage({ settings, campaignId, view = "setting
                   {smtpServers.map((item) => <option key={item.id} value={item.id}>{item.name} ({serverEndpointLabel(item.config)})</option>)}
                 </select>
               </FormField>
-              <FormField label="SMTP credential">
-                <select value={selectedSmtpCredential?.id ?? ""} disabled={locked || profilesLoading || !selectedSmtpServer} onChange={(event) => selectCredential("smtp", event.target.value)}>
+              <FormField label="SMTP credential" helpContextId="campaign.server-settings" helpModuleId="campaigns">
+                <select data-help-context-id="campaign.server-settings" data-help-module-id="campaigns" value={selectedSmtpCredential?.id ?? ""} disabled={locked || profilesLoading || !selectedSmtpServer} onChange={(event) => selectCredential("smtp", event.target.value)}>
                   <option value="">No credential</option>
                   {selectedSmtpServer?.credentials.filter((item) => item.is_active).map((item) =>
                     <option key={item.id} value={item.id}>{credentialLabel(item)}</option>
@@ -413,8 +413,8 @@ export default function MailSettingsPage({ settings, campaignId, view = "setting
                   {imapServers.map((item) => <option key={item.id} value={item.id}>{item.name} ({serverEndpointLabel(item.config)})</option>)}
                 </select>
               </FormField>
-              <FormField label="IMAP credential">
-                <select value={selectedImapCredential?.id ?? ""} disabled={locked || profilesLoading || !selectedImapServer} onChange={(event) => selectCredential("imap", event.target.value)}>
+              <FormField label="IMAP credential" helpContextId="campaign.server-settings" helpModuleId="campaigns">
+                <select data-help-context-id="campaign.server-settings" data-help-module-id="campaigns" value={selectedImapCredential?.id ?? ""} disabled={locked || profilesLoading || !selectedImapServer} onChange={(event) => selectCredential("imap", event.target.value)}>
                   <option value="">No credential</option>
                   {selectedImapServer?.credentials.filter((item) => item.is_active).map((item) =>
                     <option key={item.id} value={item.id}>{credentialLabel(item)}</option>
@@ -476,8 +476,8 @@ export default function MailSettingsPage({ settings, campaignId, view = "setting
                   <FormField label="Username">
                     <input value={credentialDraft.username} disabled={credentialSaving} onChange={(event) => setCredentialDraft({ ...credentialDraft, username: event.target.value })} />
                   </FormField>
-                  <FormField label="Password">
-                    <PasswordField value={credentialDraft.password} onValueChange={(password) => setCredentialDraft({ ...credentialDraft, password })} disabled={credentialSaving} generator autoComplete="new-password" />
+                  <FormField label="Password" helpContextId="campaign.server-settings" helpModuleId="campaigns">
+                    <PasswordField helpContextId="campaign.server-settings" helpModuleId="campaigns" value={credentialDraft.password} onValueChange={(password) => setCredentialDraft({ ...credentialDraft, password })} disabled={credentialSaving} generator autoComplete="new-password" />
                   </FormField>
                 </FormGrid>
                 <FormGrid columns={2} collapseAt="standard" className="">
diff --git a/webui/src/features/campaigns/ReviewSendPage.tsx b/webui/src/features/campaigns/ReviewSendPage.tsx
index af5c7a6..0675a08 100644
--- a/webui/src/features/campaigns/ReviewSendPage.tsx
+++ b/webui/src/features/campaigns/ReviewSendPage.tsx
@@ -1638,7 +1638,7 @@ export default function ReviewSendPage({
             <p className="review-flow-inline-note is-stale">i18n:govoplan-campaign.mock_delivery_uses_the_mail_module_development_m.9d645a5f</p>
             }
             <div className="toggle-row mock-send-options">
-              <ToggleSwitch label="i18n:govoplan-campaign.require_mock_before_real_send.a1ccc330" checked={mockVerificationRequired} disabled={!mockWorkflowAvailable || Boolean(busy)} onChange={setMockVerificationRequired} />
+              <ToggleSwitch label="i18n:govoplan-campaign.require_mock_before_real_send.a1ccc330" helpContextId="campaign.review-send" helpModuleId="campaigns" checked={mockVerificationRequired} disabled={!mockWorkflowAvailable || Boolean(busy)} onChange={setMockVerificationRequired} />
               <ToggleSwitch label="i18n:govoplan-campaign.show_captured_mock_mailbox.019e1e79" checked={mockMailboxPreviewEnabled && mockWorkflowAvailable} disabled={!mockWorkflowAvailable || Boolean(busy)} onChange={setMockMailboxPreviewEnabled} />
               <ToggleSwitch label="i18n:govoplan-campaign.clear_mock_mailbox_first.7627dcad" checked={mockClearFirst} disabled={!mockWorkflowAvailable || Boolean(busy)} onChange={setMockClearFirst} />
               <ToggleSwitch label="i18n:govoplan-campaign.append_mock_sent_copy.49c2cf08" checked={mockAppendSent} disabled={!mockWorkflowAvailable || Boolean(busy)} onChange={setMockAppendSent} />
diff --git a/webui/src/features/campaigns/components/CampaignAccessCard.tsx b/webui/src/features/campaigns/components/CampaignAccessCard.tsx
index 9035f0d..a9c4352 100644
--- a/webui/src/features/campaigns/components/CampaignAccessCard.tsx
+++ b/webui/src/features/campaigns/components/CampaignAccessCard.tsx
@@ -429,7 +429,7 @@ export default function CampaignAccessCard({
 
   return (
     <>
-      <Card title="i18n:govoplan-campaign.ownership_and_sharing.867283c0" actions={<div className="button-row compact-actions">{canProposeOwnership ? <Button onClick={openOwnerDialog}><ArrowRightLeft size={16} aria-hidden="true" /> Transfer ownership</Button> : null}{canRequestOwnership ? <Button onClick={openRequestDialog}><ArrowRightLeft size={16} aria-hidden="true" /> Request ownership</Button> : null}<Button onClick={() => setShareOpen(true)} disabled={available !== true}>i18n:govoplan-campaign.share.09ca55ca</Button><Button onClick={() => void openAccessExplanation()} disabled={!canExplainResourceAccess}><KeyRound size={16} aria-hidden="true" /> i18n:govoplan-campaign.explain_access.4d5fac37</Button></div>}>
+      <Card title="i18n:govoplan-campaign.ownership_and_sharing.867283c0" actions={<div className="button-row compact-actions">{canProposeOwnership ? <Button helpContextId="campaign.overview" helpModuleId="campaigns" onClick={openOwnerDialog}><ArrowRightLeft size={16} aria-hidden="true" /> Transfer ownership</Button> : null}{canRequestOwnership ? <Button onClick={openRequestDialog}><ArrowRightLeft size={16} aria-hidden="true" /> Request ownership</Button> : null}<Button onClick={() => setShareOpen(true)} disabled={available !== true}>i18n:govoplan-campaign.share.09ca55ca</Button><Button onClick={() => void openAccessExplanation()} disabled={!canExplainResourceAccess}><KeyRound size={16} aria-hidden="true" /> i18n:govoplan-campaign.explain_access.4d5fac37</Button></div>}>
         <p><strong>i18n:govoplan-campaign.owner.719379ae</strong> {ownerLabel}</p>
         <p className="muted small-note">Ownership changes require acceptance by the new owner. They never transfer private encryption keys. A completed transfer clears owner-scoped mail profile selection and requires revalidation.</p>
         {ownershipTransfers.length > 0 ? (
@@ -489,7 +489,7 @@ export default function CampaignAccessCard({
         )}
       </Card>
 
-      <Dialog open={ownerOpen} className="campaign-access-dialog" title="Transfer campaign ownership" onClose={() => !busy && closeOwnerDialog()} footer={<><Button onClick={closeOwnerDialog} disabled={busy}>i18n:govoplan-campaign.cancel.77dfd213</Button><Button variant="primary" onClick={() => void saveOwner()} disabled={busy || !ownerId || ownerType === currentOwnerType && ownerId === currentOwnerId}>Propose transfer</Button></>}>
+      <Dialog open={ownerOpen} className="campaign-access-dialog" title="Transfer campaign ownership" helpContextId="campaign.overview" helpModuleId="campaigns" onClose={() => !busy && closeOwnerDialog()} footer={<><Button onClick={closeOwnerDialog} disabled={busy}>i18n:govoplan-campaign.cancel.77dfd213</Button><Button variant="primary" helpContextId="campaign.overview" helpModuleId="campaigns" onClick={() => void saveOwner()} disabled={busy || !ownerId || ownerType === currentOwnerType && ownerId === currentOwnerId}>Propose transfer</Button></>}>
         <FormField label="i18n:govoplan-campaign.owner_type.6b86eacc"><select value={ownerType} onChange={(event) => {const next = event.target.value as TargetType;setOwnerType(next);setOwnerId("");}}><option value="user">i18n:govoplan-campaign.user.9f8a2389</option><option value="group">i18n:govoplan-campaign.group.171a0606</option></select></FormField>
         <FormField label="i18n:govoplan-campaign.owner.89ff3122">
           <ReferenceSelect