diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8f335a92ff..1f61a82744 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,6 +15,8 @@ Version 71
 ----------
 *in development*
 
+* 🔨 Cloud: do not fail when uploading more than 500 new shows.
+
 #### 71.0.0 🧪
 *2023-11-17*
 
diff --git a/app/src/main/java/com/battlelancer/seriesguide/sync/HexagonEpisodeSync.java b/app/src/main/java/com/battlelancer/seriesguide/sync/HexagonEpisodeSync.java
index 4e6b1925f3..61f988db7f 100644
--- a/app/src/main/java/com/battlelancer/seriesguide/sync/HexagonEpisodeSync.java
+++ b/app/src/main/java/com/battlelancer/seriesguide/sync/HexagonEpisodeSync.java
@@ -33,6 +33,7 @@
 
 public class HexagonEpisodeSync {
 
+    // See API documentation on list size limit.
     public static final int MAX_BATCH_SIZE = 500;
 
     private final Context context;
diff --git a/app/src/main/java/com/battlelancer/seriesguide/sync/HexagonMovieSync.kt b/app/src/main/java/com/battlelancer/seriesguide/sync/HexagonMovieSync.kt
index 7663e159f4..84435d03fa 100644
--- a/app/src/main/java/com/battlelancer/seriesguide/sync/HexagonMovieSync.kt
+++ b/app/src/main/java/com/battlelancer/seriesguide/sync/HexagonMovieSync.kt
@@ -11,9 +11,9 @@ import android.text.TextUtils
 import androidx.preference.PreferenceManager
 import com.battlelancer.seriesguide.backend.HexagonTools
 import com.battlelancer.seriesguide.backend.settings.HexagonSettings
+import com.battlelancer.seriesguide.movies.tools.MovieTools
 import com.battlelancer.seriesguide.provider.SeriesGuideContract
 import com.battlelancer.seriesguide.provider.SgRoomDatabase
-import com.battlelancer.seriesguide.movies.tools.MovieTools
 import com.battlelancer.seriesguide.util.DBUtils
 import com.battlelancer.seriesguide.util.Errors
 import com.google.api.client.util.DateTime
@@ -22,7 +22,6 @@ import com.uwetrottmann.seriesguide.backend.movies.model.Movie
 import com.uwetrottmann.seriesguide.backend.movies.model.MovieList
 import timber.log.Timber
 import java.io.IOException
-import java.util.ArrayList
 
 internal class HexagonMovieSync(
     private val context: Context,
@@ -222,14 +221,10 @@ internal class HexagonMovieSync(
             return true
         }
 
-        // Upload in small batches
-        val wrapper = MovieList()
-        while (movies.isNotEmpty()) {
-            wrapper.movies = ArrayList()
-            while (movies.isNotEmpty() && wrapper.movies.size < MAX_BATCH_SIZE) {
-                wrapper.movies.add(movies.removeFirst())
-            }
-
+        // Upload in batches
+        movies.chunked(MAX_BATCH_SIZE).forEach { chunk ->
+            val wrapper = MovieList()
+            wrapper.movies = chunk
             try {
                 // get service each time to check if auth was removed
                 val moviesService = hexagonTools.moviesService ?: return false
@@ -265,6 +260,7 @@ internal class HexagonMovieSync(
     }
 
     companion object {
+        // See API documentation on list size limit.
         private const val MAX_BATCH_SIZE = 500
     }
 
diff --git a/app/src/main/java/com/battlelancer/seriesguide/sync/HexagonShowSync.kt b/app/src/main/java/com/battlelancer/seriesguide/sync/HexagonShowSync.kt
index 705daffaae..2bf0d8f9d3 100644
--- a/app/src/main/java/com/battlelancer/seriesguide/sync/HexagonShowSync.kt
+++ b/app/src/main/java/com/battlelancer/seriesguide/sync/HexagonShowSync.kt
@@ -409,19 +409,20 @@ class HexagonShowSync @Inject constructor(
         // https://github.com/UweTrottmann/SeriesGuide/issues/781
         Timber.i("upload: %d shows", shows.size)
 
-        // wrap into helper object
-        val showList = SgCloudShowList()
-        showList.shows = shows
-
-        // upload shows
-        try {
-            // get service each time to check if auth was removed
-            val showsService = hexagonTools.showsService ?: return false
-            showsService.saveSgShows(showList).execute()
-        } catch (e: IOException) {
-            logAndReportHexagon("save shows", e)
-            return false
+        // Upload in batches
+        shows.chunked(MAX_BATCH_SIZE).forEach { chunk ->
+            val wrapper = SgCloudShowList()
+            wrapper.shows = chunk
+            try {
+                // get service each time to check if auth was removed
+                val showsService = hexagonTools.showsService ?: return false
+                showsService.saveSgShows(wrapper).execute()
+            } catch (e: IOException) {
+                logAndReportHexagon("save shows", e)
+                return false
+            }
         }
+
         return true
     }
 
@@ -431,4 +432,9 @@ class HexagonShowSync @Inject constructor(
         }
     }
 
+    companion object {
+        // See API documentation on list size limit.
+        const val MAX_BATCH_SIZE = 500
+    }
+
 }