diff --git a/Campus.entitlements b/Campus.entitlements
new file mode 100644
index 00000000..fdd95bd5
--- /dev/null
+++ b/Campus.entitlements
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>com.apple.security.application-groups</key>
+	<array>
+		<string>group.tum.campusapp</string>
+	</array>
+</dict>
+</plist>
diff --git a/TUM Campus App.xcodeproj/project.pbxproj b/TUM Campus App.xcodeproj/project.pbxproj
index 2691e366..6a748d4b 100644
--- a/TUM Campus App.xcodeproj/project.pbxproj	
+++ b/TUM Campus App.xcodeproj/project.pbxproj	
@@ -278,6 +278,7 @@
 		0EF790EE1EA8223D005CB9AB /* BookRetanlAPI.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = BookRetanlAPI.swift; sourceTree = "<group>"; };
 		0EF790F01EA82EC2005CB9AB /* BookRentalSession.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = BookRentalSession.swift; sourceTree = "<group>"; };
 		0EF790F21EA82F2E005CB9AB /* BookRentalHTML.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = BookRentalHTML.swift; sourceTree = "<group>"; };
+		222F90F91EB7BD69002F9289 /* Campus.entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.plist.entitlements; path = Campus.entitlements; sourceTree = "<group>"; };
 		229795861EAC1F67004A7F9B /* LibrarySettingsViewController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = LibrarySettingsViewController.swift; sourceTree = "<group>"; };
 		229795881EAC228E004A7F9B /* KeychainWrapper.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = KeychainWrapper.h; sourceTree = "<group>"; };
 		229795891EAC228E004A7F9B /* KeychainWrapper.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = KeychainWrapper.m; sourceTree = "<group>"; };
@@ -407,6 +408,7 @@
 		0E424F3C1BE16DBD00B5DFCB = {
 			isa = PBXGroup;
 			children = (
+				222F90F91EB7BD69002F9289 /* Campus.entitlements */,
 				0E424F471BE16DBE00B5DFCB /* TUM Campus App */,
 				0E424F5C1BE16DBE00B5DFCB /* TUM Campus AppUITests */,
 				504C292A1E2BBB9C007583E2 /* TUM Campus AppUnitTests */,
@@ -912,6 +914,11 @@
 						CreatedOnToolsVersion = 7.1;
 						DevelopmentTeam = LQ83GZ8GRK;
 						LastSwiftMigration = 0820;
+						SystemCapabilities = {
+							com.apple.ApplicationGroups.iOS = {
+								enabled = 1;
+							};
+						};
 					};
 					0E424F581BE16DBE00B5DFCB = {
 						CreatedOnToolsVersion = 7.1;
@@ -1340,6 +1347,7 @@
 				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = "$(inherited)";
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ENABLE_MODULES = YES;
+				CODE_SIGN_ENTITLEMENTS = Campus.entitlements;
 				CODE_SIGN_IDENTITY = "iPhone Developer";
 				DEVELOPMENT_TEAM = LQ83GZ8GRK;
 				FRAMEWORK_SEARCH_PATHS = "$(inherited)";
@@ -1361,6 +1369,7 @@
 				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = "$(inherited)";
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ENABLE_MODULES = YES;
+				CODE_SIGN_ENTITLEMENTS = Campus.entitlements;
 				CODE_SIGN_IDENTITY = "iPhone Developer";
 				DEVELOPMENT_TEAM = LQ83GZ8GRK;
 				INFOPLIST_FILE = "TUM Campus App/Info.plist";