diff --git a/server/lifecycles/upload-event-entry-to-localazy-hook.js b/server/lifecycles/upload-event-entry-to-localazy-hook.js
index 7adbeff..3820352 100644
--- a/server/lifecycles/upload-event-entry-to-localazy-hook.js
+++ b/server/lifecycles/upload-event-entry-to-localazy-hook.js
@@ -17,15 +17,20 @@ module.exports = async (event) => {
     .plugin("localazy")
     .service("localazyUploadService");
 
-  const chunks = LocalazyUploadService.splitToChunks(pickedFlatten);
   const importFile = LocalazyUploadService.createImportFileRepresentation(
-    config.LOCALAZY_DEFAULT_FILE_NAME,
-    config.LOCALAZY_DEFAULT_FILE_PATH,
-    config.LOCALAZY_DEFAULT_FILE_EXTENSION,
     eventEntryLocale,
-    chunks
+    pickedFlatten
   );
 
-  const result = await LocalazyUploadService.upload(importFile);
+  const uploadConfig = {
+    contentOptions: {
+      type: config.LOCALAZY_DEFAULT_FILE_EXTENSION,
+    },
+    fileOptions: {
+      name: config.LOCALAZY_DEFAULT_FILE_NAME,
+      path: config.LOCALAZY_DEFAULT_FILE_PATH,
+    }
+  };
+  const result = await LocalazyUploadService.upload(importFile, uploadConfig);
   return result;
 }
diff --git a/server/services/localazy-transfer-upload-service.js b/server/services/localazy-transfer-upload-service.js
index b585cd7..8b402ff 100644
--- a/server/services/localazy-transfer-upload-service.js
+++ b/server/services/localazy-transfer-upload-service.js
@@ -146,17 +146,21 @@ module.exports = ({ strapi }) => ({
       ? isoStrapiToLocalazy(defaultLocale.code)
       : config.LOCALAZY_DEFAULT_LOCALE;
 
-    const chunks = LocalazyUploadService.splitToChunks(flattenContent);
     const importFile = LocalazyUploadService.createImportFileRepresentation(
-      config.LOCALAZY_DEFAULT_FILE_NAME,
-      config.LOCALAZY_DEFAULT_FILE_PATH,
-      config.LOCALAZY_DEFAULT_FILE_EXTENSION,
       locale,
-      chunks
+      flattenContent
     );
-    // Use `deprecate: "file"` if there is one chunk of transferred data only!
-    const hasMoreTransferFilesChunks = importFile.length > 1;
-    const uploadConfig = !hasMoreTransferFilesChunks ? { deprecate: "file" } : {};
+    // Use `deprecate: "file"` if there is one chunk of transferred data only (99900 keys)!
+    const uploadConfig = {
+      contentOptions: {
+        type: config.LOCALAZY_DEFAULT_FILE_EXTENSION,
+      },
+      i18nOptions: { deprecate: "file" },
+      fileOptions: {
+        name: config.LOCALAZY_DEFAULT_FILE_NAME,
+        path: config.LOCALAZY_DEFAULT_FILE_PATH,
+      }
+    };
     await JobNotificationService.emit(UPLOAD_EVENT, {
       message: "Uploading collections to Localazy...",
     });
diff --git a/server/services/localazy-upload-service.js b/server/services/localazy-upload-service.js
index e545c55..40a5e44 100644
--- a/server/services/localazy-upload-service.js
+++ b/server/services/localazy-upload-service.js
@@ -12,31 +12,24 @@ module.exports = ({ strapi }) => ({
    * Use config to adjust the upload process.
    * Returns status and id of a last chunk
    */
-  async upload(files, config = {}) {
-    let ret = {
-      success: false,
-      message: "No data was uploaded",
-    };
+  async upload(file, config = {}) {
     try {
-      for (const file of files) {
-        const LocalazyApi = await localazyApiClientFactory();
-        const user = await strapi
-          .plugin("localazy")
-          .service("localazyUserService")
-          .getUser();
+      const LocalazyApi = await localazyApiClientFactory();
+      const user = await strapi
+        .plugin("localazy")
+        .service("localazyUserService")
+        .getUser();
+
+      const result = await LocalazyApi.import.json({
+        project: user.project.id,
+        json: file,
+        ...config,
+      });
 
-        const result = await LocalazyApi.import({
-          projectId: user.project.id,
-          files: file,
-          ...config,
-        });
-        await delay();
-        ret = {
-          success: true,
-          result: result.result,
-        };
-      }
-      return ret;
+      return {
+        success: true,
+        result,
+      };
     } catch (e) {
       strapi.log.error(e);
       return {
@@ -46,57 +39,16 @@ module.exports = ({ strapi }) => ({
     }
   },
 
-  /**
-   * Check Directus for the Lifted Limits OAuth Apps IDs
-   */
-  CHUNK_LIMIT: config.LOCALAZY_PUBLIC_API_LIFTED_LIMITS ? 99900 : 9990,
-
-  splitToChunks(data, CHUNK_LIMIT = null) {
-    const chunks = [];
-    const keys = Object.keys(data);
-    const keysCount = keys.length;
-    const localChunkLimit = CHUNK_LIMIT || this.CHUNK_LIMIT;
-    const chunksCount = Math.ceil(keysCount / localChunkLimit);
-    for (let i = 0; i < chunksCount; i += 1) {
-      const chunkStrings = {};
-      const from = localChunkLimit * i;
-      const to = localChunkLimit * (i + 1);
-
-      const currentKeys = keys.slice(from, to);
-      currentKeys.forEach((key) => {
-        chunkStrings[key] = data[key];
-      });
-      chunks.push(chunkStrings);
-    }
-
-    return chunks;
-  },
-
   createImportFileRepresentation(
-    filename,
-    path,
-    type,
     sourceLang,
-    stringsChunks
+    strings
   ) {
-    const files = [];
-
-    for (const strings of stringsChunks) {
-      const file = [
-        {
-          name: filename,
-          path,
-          content: {
-            type,
-            [sourceLang]: {
-              ...strings,
-            },
-          },
-        },
-      ];
-      files.push(file);
-    }
+    const file = {
+      [sourceLang]: {
+        ...strings,
+      },
+    };
 
-    return files;
+    return file;
   },
 });