diff --git a/src/routes/api/sync.js b/src/routes/api/sync.js
index e3e6d62da..08fc9cfa5 100644
--- a/src/routes/api/sync.js
+++ b/src/routes/api/sync.js
@@ -10,6 +10,8 @@ const contentHashService = require('../../services/content_hash');
 const log = require('../../services/log');
 const syncOptions = require('../../services/sync_options');
 const dateUtils = require('../../services/date_utils');
+const entityConstructor = require('../../entities/entity_constructor');
+const utils = require('../../services/utils');
 
 async function testSync() {
     try {
@@ -47,7 +49,7 @@ async function getStats() {
 
 async function checkSync() {
     return {
-        hashes: await contentHashService.getHashes(),
+        entityHashes: await contentHashService.getEntityHashes(),
         maxSyncId: await sql.getValue('SELECT MAX(id) FROM sync')
     };
 }
@@ -137,6 +139,15 @@ async function syncFinished() {
     await sqlInit.dbInitialized();
 }
 
+async function queueSector(req) {
+    const entityName = utils.sanitizeSqlIdentifier(req.params.entityName);
+    const sector = utils.sanitizeSqlIdentifier(req.params.sector);
+
+    const entityPrimaryKey = entityConstructor.getEntityFromEntityName(entityName).primaryKeyName;
+
+    await syncTableService.addEntitySyncsForSector(entityName, entityPrimaryKey, sector);
+}
+
 module.exports = {
     testSync,
     checkSync,
@@ -147,5 +158,6 @@ module.exports = {
     getChanged,
     update,
     getStats,
-    syncFinished
+    syncFinished,
+    queueSector
 };
\ No newline at end of file
diff --git a/src/routes/routes.js b/src/routes/routes.js
index 977a2d581..f8237c859 100644
--- a/src/routes/routes.js
+++ b/src/routes/routes.js
@@ -199,6 +199,7 @@ function register(app) {
     route(GET, '/api/sync/changed', [auth.checkApiAuth], syncApiRoute.getChanged, apiResultHandler);
     route(PUT, '/api/sync/update', [auth.checkApiAuth], syncApiRoute.update, apiResultHandler);
     route(POST, '/api/sync/finished', [auth.checkApiAuth], syncApiRoute.syncFinished, apiResultHandler);
+    route(POST, '/api/sync/queue-sector/:entityName/:sector', [auth.checkApiAuth], syncApiRoute.queueSector, apiResultHandler);
     route(GET, '/api/sync/stats', [], syncApiRoute.getStats, apiResultHandler);
 
     apiRoute(POST, '/api/recent-notes', recentNotesRoute.addRecentNote);
diff --git a/src/services/content_hash.js b/src/services/content_hash.js
index 6c520baee..207b94e83 100644
--- a/src/services/content_hash.js
+++ b/src/services/content_hash.js
@@ -3,7 +3,6 @@
 const sql = require('./sql');
 const utils = require('./utils');
 const log = require('./log');
-const ws = require('./ws.js');
 const ApiToken = require('../entities/api_token');
 const Branch = require('../entities/branch');
 const Note = require('../entities/note');
@@ -70,9 +69,11 @@ async function checkContentHashes(otherHashes) {
     if (failedChecks.length === 0) {
         log.info("Content hash checks PASSED");
     }
+
+    return failedChecks;
 }
 
 module.exports = {
-    getHashes: getEntityHashes,
+    getEntityHashes,
     checkContentHashes
 };
\ No newline at end of file
diff --git a/src/services/sync.js b/src/services/sync.js
index 6eb5896a1..cddff0182 100644
--- a/src/services/sync.js
+++ b/src/services/sync.js
@@ -15,6 +15,8 @@ const syncMutexService = require('./sync_mutex');
 const cls = require('./cls');
 const request = require('./request');
 const ws = require('./ws');
+const syncTableService = require('./sync_table');
+const entityConstructor = require('../entities/entity_constructor');
 
 let proxyToggle = true;
 
@@ -30,17 +32,22 @@ async function sync() {
                 return { success: false, message: 'Sync not configured' };
             }
 
-            const syncContext = await login();
+            let continueSync = false;
 
-            await pushSync(syncContext);
+            do {
+                const syncContext = await login();
 
-            await pullSync(syncContext);
+                await pushSync(syncContext);
 
-            await pushSync(syncContext);
+                await pullSync(syncContext);
 
-            await syncFinished(syncContext);
+                await pushSync(syncContext);
 
-            await checkContentHash(syncContext);
+                await syncFinished(syncContext);
+
+                continueSync = await checkContentHash(syncContext);
+            }
+            while (continueSync);
 
             return {
                 success: true
@@ -225,7 +232,7 @@ async function checkContentHash(syncContext) {
     if (await getLastSyncedPull() < resp.maxSyncId) {
         log.info("There are some outstanding pulls, skipping content check.");
 
-        return;
+        return true;
     }
 
     const notPushedSyncs = await sql.getValue("SELECT EXISTS(SELECT 1 FROM sync WHERE id > ?)", [await getLastSyncedPush()]);
@@ -233,10 +240,20 @@ async function checkContentHash(syncContext) {
     if (notPushedSyncs) {
         log.info(`There's ${notPushedSyncs} outstanding pushes, skipping content check.`);
 
-        return;
+        return true;
     }
 
-    await contentHashService.checkContentHashes(resp.hashes);
+    const failedChecks = await contentHashService.checkContentHashes(resp.entityHashes);
+
+    for (const {entityName, sector} of failedChecks) {
+        const entityPrimaryKey = entityConstructor.getEntityFromEntityName(entityName).primaryKeyName;
+
+        await syncTableService.addEntitySyncsForSector(entityName, entityPrimaryKey, sector);
+
+        await syncRequest(syncContext, 'POST', `/api/sync/queue-sector/${entityName}/${sector}`);
+    }
+
+    return failedChecks.length > 0;
 }
 
 async function syncRequest(syncContext, method, requestPath, body) {
diff --git a/src/services/sync_table.js b/src/services/sync_table.js
index ffb95b639..75906e7d4 100644
--- a/src/services/sync_table.js
+++ b/src/services/sync_table.js
@@ -6,7 +6,7 @@ const cls = require('./cls');
 
 let syncs = [];
 
-async function addEntitySync(entityName, entityId, sourceId) {
+async function insertEntitySync(entityName, entityId, sourceId) {
     const sync = {
         entityName: entityName,
         entityId: entityId,
@@ -16,11 +16,25 @@ async function addEntitySync(entityName, entityId, sourceId) {
 
     sync.id = await sql.replace("sync", sync);
 
+    return sync;
+}
+
+async function addEntitySync(entityName, entityId, sourceId) {
+    const sync = await insertEntitySync(entityName, entityId, sourceId);
+
     syncs.push(sync);
 
     setTimeout(() => require('./ws').sendPingToAllClients(), 50);
 }
 
+async function addEntitySyncsForSector(entityName, entityPrimaryKey, sector) {
+    const entityIds = await sql.getColumn(`SELECT ${entityPrimaryKey} FROM ${entityName} WHERE SUBSTR(${entityPrimaryKey}, 1, 1) = ?`, [sector]);
+
+    for (const entityId of entityIds) {
+        await insertEntitySync(entityName, entityId, 'content-check');
+    }
+}
+
 function getMaxSyncId() {
     return syncs.length === 0 ? 0 : syncs[syncs.length - 1].id;
 }
@@ -29,19 +43,19 @@ function getEntitySyncsNewerThan(syncId) {
     return syncs.filter(s => s.id > syncId);
 }
 
-async function cleanupSyncRowsForMissingEntities(entityName, entityKey) {
+async function cleanupSyncRowsForMissingEntities(entityName, entityPrimaryKey) {
     await sql.execute(`
       DELETE 
       FROM sync 
       WHERE sync.entityName = '${entityName}' 
-        AND sync.entityId NOT IN (SELECT ${entityKey} FROM ${entityName})`);
+        AND sync.entityId NOT IN (SELECT ${entityPrimaryKey} FROM ${entityName})`);
 }
 
-async function fillSyncRows(entityName, entityKey, condition = '') {
+async function fillSyncRows(entityName, entityPrimaryKey, condition = '') {
     try {
-        await cleanupSyncRowsForMissingEntities(entityName, entityKey);
+        await cleanupSyncRowsForMissingEntities(entityName, entityPrimaryKey);
 
-        const entityIds = await sql.getColumn(`SELECT ${entityKey} FROM ${entityName}`
+        const entityIds = await sql.getColumn(`SELECT ${entityPrimaryKey} FROM ${entityName}`
             + (condition ? ` WHERE ${condition}` : ''));
 
         let createdCount = 0;
@@ -69,7 +83,7 @@ async function fillSyncRows(entityName, entityKey, condition = '') {
     catch (e) {
         // this is to fix migration from 0.30 to 0.32, can be removed later
         // see https://github.com/zadam/trilium/issues/557
-        log.error(`Filling sync rows failed for ${entityName} ${entityKey} with error "${e.message}", continuing`);
+        log.error(`Filling sync rows failed for ${entityName} ${entityPrimaryKey} with error "${e.message}", continuing`);
     }
 }
 
@@ -101,5 +115,6 @@ module.exports = {
     addEntitySync,
     fillAllSyncRows,
     getEntitySyncsNewerThan,
-    getMaxSyncId
+    getMaxSyncId,
+    addEntitySyncsForSector
 };
\ No newline at end of file
diff --git a/src/services/utils.js b/src/services/utils.js
index 28e74d019..4b5afce3d 100644
--- a/src/services/utils.js
+++ b/src/services/utils.js
@@ -53,6 +53,10 @@ function sanitizeSql(str) {
     return str.replace(/'/g, "''");
 }
 
+function sanitizeSqlIdentifier(str) {
+    return str.replace(/[A-Za-z0-9_]/g, "");
+}
+
 function prepareSqlForLike(prefix, str, suffix) {
     const value = str
         .replace(/\\/g, "\\\\")
@@ -174,6 +178,7 @@ module.exports = {
     hash,
     isEmptyOrWhitespace,
     sanitizeSql,
+    sanitizeSqlIdentifier,
     prepareSqlForLike,
     stopWatch,
     escapeHtml,