diff --git a/shell_integration/MacOSX/NextcloudIntegration/FileProviderExt/Extensions/NKError+Extensions.swift b/shell_integration/MacOSX/NextcloudIntegration/FileProviderExt/Extensions/NKError+Extensions.swift
new file mode 100644
index 000000000..e30574a66
--- /dev/null
+++ b/shell_integration/MacOSX/NextcloudIntegration/FileProviderExt/Extensions/NKError+Extensions.swift
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2023 by Claudio Cambra <claudio.cambra@nextcloud.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ */
+
+import Foundation
+import FileProvider
+import NextcloudKit
+
+extension NKError {
+    func toFileProviderError() -> NSFileProviderError {
+        let nkErrorCode = self.errorCode
+
+        if nkErrorCode == 404 {
+            return NSFileProviderError(.noSuchItem)
+        } else if nkErrorCode == -9999 || nkErrorCode == -1001 || nkErrorCode == -1004 || nkErrorCode == -1005 || nkErrorCode == -1009 || nkErrorCode == -1012 || nkErrorCode == -1200 || nkErrorCode == -1202 || nkErrorCode == 500 || nkErrorCode == 503 || nkErrorCode == 200 {
+            // Provide something the file provider can do something with
+            return NSFileProviderError(.serverUnreachable)
+        } else if nkErrorCode == -1013  {
+            return NSFileProviderError(.notAuthenticated)
+        } else if nkErrorCode == 507 {
+            return NSFileProviderError(.insufficientQuota)
+        } else {
+            return NSFileProviderError(.cannotSynchronize)
+        }
+    }
+}
diff --git a/shell_integration/MacOSX/NextcloudIntegration/NextcloudIntegration.xcodeproj/project.pbxproj b/shell_integration/MacOSX/NextcloudIntegration/NextcloudIntegration.xcodeproj/project.pbxproj
index 23944e756..a84a16e00 100644
--- a/shell_integration/MacOSX/NextcloudIntegration/NextcloudIntegration.xcodeproj/project.pbxproj
+++ b/shell_integration/MacOSX/NextcloudIntegration/NextcloudIntegration.xcodeproj/project.pbxproj
@@ -15,6 +15,7 @@
 		5318AD9329BF432B00CBB71C /* NextcloudDirectoryMetadataTable.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5318AD9229BF432B00CBB71C /* NextcloudDirectoryMetadataTable.swift */; };
 		5318AD9529BF438F00CBB71C /* NextcloudLocalFileMetadataTable.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5318AD9429BF438F00CBB71C /* NextcloudLocalFileMetadataTable.swift */; };
 		5318AD9729BF493600CBB71C /* FileProviderMaterialisedEnumerationObserver.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5318AD9629BF493600CBB71C /* FileProviderMaterialisedEnumerationObserver.swift */; };
+		5318AD9929BF58D000CBB71C /* NKError+Extensions.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5318AD9829BF58D000CBB71C /* NKError+Extensions.swift */; };
 		5352E85B29B7BFE6002CE85C /* Progress+Extensions.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5352E85A29B7BFE6002CE85C /* Progress+Extensions.swift */; };
 		536EFBF7295CF58100F4CB13 /* FileProviderSocketLineProcessor.swift in Sources */ = {isa = PBXBuildFile; fileRef = 536EFBF6295CF58100F4CB13 /* FileProviderSocketLineProcessor.swift */; };
 		536EFC36295E3C1100F4CB13 /* NextcloudAccount.swift in Sources */ = {isa = PBXBuildFile; fileRef = 536EFC35295E3C1100F4CB13 /* NextcloudAccount.swift */; };
@@ -138,6 +139,7 @@
 		5318AD9229BF432B00CBB71C /* NextcloudDirectoryMetadataTable.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NextcloudDirectoryMetadataTable.swift; sourceTree = "<group>"; };
 		5318AD9429BF438F00CBB71C /* NextcloudLocalFileMetadataTable.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NextcloudLocalFileMetadataTable.swift; sourceTree = "<group>"; };
 		5318AD9629BF493600CBB71C /* FileProviderMaterialisedEnumerationObserver.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = FileProviderMaterialisedEnumerationObserver.swift; sourceTree = "<group>"; };
+		5318AD9829BF58D000CBB71C /* NKError+Extensions.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "NKError+Extensions.swift"; sourceTree = "<group>"; };
 		5352E85A29B7BFE6002CE85C /* Progress+Extensions.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "Progress+Extensions.swift"; sourceTree = "<group>"; };
 		536EFBF6295CF58100F4CB13 /* FileProviderSocketLineProcessor.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = FileProviderSocketLineProcessor.swift; sourceTree = "<group>"; };
 		536EFC35295E3C1100F4CB13 /* NextcloudAccount.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NextcloudAccount.swift; sourceTree = "<group>"; };
@@ -226,6 +228,7 @@
 			isa = PBXGroup;
 			children = (
 				5352E85A29B7BFE6002CE85C /* Progress+Extensions.swift */,
+				5318AD9829BF58D000CBB71C /* NKError+Extensions.swift */,
 			);
 			path = Extensions;
 			sourceTree = "<group>";
@@ -561,6 +564,7 @@
 				538E396D27F4765000FA63D5 /* FileProviderExtension.swift in Sources */,
 				5318AD9329BF432B00CBB71C /* NextcloudDirectoryMetadataTable.swift in Sources */,
 				536EFBF7295CF58100F4CB13 /* FileProviderSocketLineProcessor.swift in Sources */,
+				5318AD9929BF58D000CBB71C /* NKError+Extensions.swift in Sources */,
 				5318AD9529BF438F00CBB71C /* NextcloudLocalFileMetadataTable.swift in Sources */,
 				5307A6F229675346001E0C6A /* NextcloudFilesDatabaseManager.swift in Sources */,
 				53D056312970594F00988392 /* LocalFilesUtils.swift in Sources */,