diff --git a/Passepartout-iOS/Global/ProductManager.swift b/Passepartout-iOS/Global/ProductManager.swift
index 32039f2c..832d60db 100644
--- a/Passepartout-iOS/Global/ProductManager.swift
+++ b/Passepartout-iOS/Global/ProductManager.swift
@@ -66,12 +66,14 @@ class ProductManager: NSObject {
         SKPaymentQueue.default().remove(self)
     }
     
-    func listProducts(completionHandler: (([SKProduct]) -> Void)?) {
-        inApp.requestProducts(withIdentifiers: Product.all) { _ in
+    func listProducts(completionHandler: (([SKProduct]?, Error?) -> Void)?) {
+        inApp.requestProducts(withIdentifiers: Product.all, completionHandler: { _ in
             log.debug("In-app products: \(self.inApp.products.map { $0.productIdentifier })")
             
-            completionHandler?(self.inApp.products)
-        }
+            completionHandler?(self.inApp.products, nil)
+        }, failureHandler: {
+            completionHandler?(nil, $0)
+        })
     }
 
     func product(withIdentifier identifier: Product) -> SKProduct? {
diff --git a/Passepartout-iOS/Scenes/Organizer/DonationViewController.swift b/Passepartout-iOS/Scenes/Organizer/DonationViewController.swift
index 0cdb8359..417b1057 100644
--- a/Passepartout-iOS/Scenes/Organizer/DonationViewController.swift
+++ b/Passepartout-iOS/Scenes/Organizer/DonationViewController.swift
@@ -27,6 +27,9 @@ import UIKit
 import StoreKit
 import PassepartoutCore
 import Convenience
+import SwiftyBeaver
+
+private let log = SwiftyBeaver.self
 
 class DonationViewController: UITableViewController, StrongTableHost {
     private var donationList: [Product] = []
@@ -81,7 +84,11 @@ class DonationViewController: UITableViewController, StrongTableHost {
 
         ProductManager.shared.listProducts {
             self.isLoading = false
-            self.setProducts($0)
+            guard let products = $0 else {
+                log.error("Unable to list products: \($1?.localizedDescription ?? "")")
+                return
+            }
+            self.setProducts(products)
         }
     }
     
diff --git a/Passepartout-iOS/Scenes/Organizer/WizardProviderViewController.swift b/Passepartout-iOS/Scenes/Organizer/WizardProviderViewController.swift
index 886d9451..bf7b85c0 100644
--- a/Passepartout-iOS/Scenes/Organizer/WizardProviderViewController.swift
+++ b/Passepartout-iOS/Scenes/Organizer/WizardProviderViewController.swift
@@ -94,10 +94,14 @@ class WizardProviderViewController: UITableViewController, StrongTableHost {
                 return
             }
 
-            ProductManager.shared.listProducts { _ in
+            ProductManager.shared.listProducts { (products, error) in
+                hud.hide()
+                if let error = error {
+                    log.error("Unable to list products: \(error)")
+                    return
+                }
                 self?.reloadModel()
                 self?.tableView.reloadData()
-                hud.hide()
             }
         }
     }
diff --git a/Passepartout-iOS/Scenes/Purchase/PurchaseViewController.swift b/Passepartout-iOS/Scenes/Purchase/PurchaseViewController.swift
index 43ce7e22..5903ae22 100644
--- a/Passepartout-iOS/Scenes/Purchase/PurchaseViewController.swift
+++ b/Passepartout-iOS/Scenes/Purchase/PurchaseViewController.swift
@@ -90,7 +90,7 @@ class PurchaseViewController: UITableViewController, StrongTableHost {
         super.viewDidAppear(animated)
 
         let hud = HUD(view: view)
-        ProductManager.shared.listProducts { [weak self] _ in
+        ProductManager.shared.listProducts { [weak self] (_, _) in
             self?.reloadModel()
             self?.isLoading = false
             self?.tableView.reloadData()
diff --git a/Podfile b/Podfile
index dc6dfaf8..9cd1c968 100644
--- a/Podfile
+++ b/Podfile
@@ -14,7 +14,7 @@ def shared_pods
     pod 'SSZipArchive'
 
     for spec in ['About', 'Alerts', 'Dialogs', 'InApp', 'Misc', 'Options', 'Persistence', 'Reviewer', 'Tables', 'WebServices'] do
-        pod "Convenience/#{spec}", :git => 'https://github.com/keeshux/convenience', :commit => '7fe7dcf'
+        pod "Convenience/#{spec}", :git => 'https://github.com/keeshux/convenience', :commit => '3a191e8'
         #pod "Convenience/#{spec}", :path => '../../personal/convenience'
     end
 end
diff --git a/Podfile.lock b/Podfile.lock
index a7778eea..34a6afb9 100644
--- a/Podfile.lock
+++ b/Podfile.lock
@@ -36,16 +36,16 @@ PODS:
     - TunnelKit/Core
 
 DEPENDENCIES:
-  - Convenience/About (from `https://github.com/keeshux/convenience`, commit `7fe7dcf`)
-  - Convenience/Alerts (from `https://github.com/keeshux/convenience`, commit `7fe7dcf`)
-  - Convenience/Dialogs (from `https://github.com/keeshux/convenience`, commit `7fe7dcf`)
-  - Convenience/InApp (from `https://github.com/keeshux/convenience`, commit `7fe7dcf`)
-  - Convenience/Misc (from `https://github.com/keeshux/convenience`, commit `7fe7dcf`)
-  - Convenience/Options (from `https://github.com/keeshux/convenience`, commit `7fe7dcf`)
-  - Convenience/Persistence (from `https://github.com/keeshux/convenience`, commit `7fe7dcf`)
-  - Convenience/Reviewer (from `https://github.com/keeshux/convenience`, commit `7fe7dcf`)
-  - Convenience/Tables (from `https://github.com/keeshux/convenience`, commit `7fe7dcf`)
-  - Convenience/WebServices (from `https://github.com/keeshux/convenience`, commit `7fe7dcf`)
+  - Convenience/About (from `https://github.com/keeshux/convenience`, commit `3a191e8`)
+  - Convenience/Alerts (from `https://github.com/keeshux/convenience`, commit `3a191e8`)
+  - Convenience/Dialogs (from `https://github.com/keeshux/convenience`, commit `3a191e8`)
+  - Convenience/InApp (from `https://github.com/keeshux/convenience`, commit `3a191e8`)
+  - Convenience/Misc (from `https://github.com/keeshux/convenience`, commit `3a191e8`)
+  - Convenience/Options (from `https://github.com/keeshux/convenience`, commit `3a191e8`)
+  - Convenience/Persistence (from `https://github.com/keeshux/convenience`, commit `3a191e8`)
+  - Convenience/Reviewer (from `https://github.com/keeshux/convenience`, commit `3a191e8`)
+  - Convenience/Tables (from `https://github.com/keeshux/convenience`, commit `3a191e8`)
+  - Convenience/WebServices (from `https://github.com/keeshux/convenience`, commit `3a191e8`)
   - Kvitto
   - MBProgressHUD
   - SSZipArchive
@@ -63,7 +63,7 @@ SPEC REPOS:
 
 EXTERNAL SOURCES:
   Convenience:
-    :commit: 7fe7dcf
+    :commit: 3a191e8
     :git: https://github.com/keeshux/convenience
   TunnelKit:
     :commit: 8b17a13
@@ -71,7 +71,7 @@ EXTERNAL SOURCES:
 
 CHECKOUT OPTIONS:
   Convenience:
-    :commit: 7fe7dcf
+    :commit: 3a191e8
     :git: https://github.com/keeshux/convenience
   TunnelKit:
     :commit: 8b17a13
@@ -87,6 +87,6 @@ SPEC CHECKSUMS:
   SwiftyBeaver: 3d3e93a12d648bd400b6f2948a7ef128b5b183c7
   TunnelKit: 4b70c0d8b6727b407248b4271b7613225f63204b
 
-PODFILE CHECKSUM: 10c7cb879b6ee3d5185f541e6a2c6d14e988ff0b
+PODFILE CHECKSUM: 5b0c1f2c23e4a3ffa33152e231291a97351d7165
 
 COCOAPODS: 1.8.4