diff --git a/combo/locale/fr/LC_MESSAGES/django.po b/combo/locale/fr/LC_MESSAGES/django.po
index 6f11f2df..fcc36a5a 100644
--- a/combo/locale/fr/LC_MESSAGES/django.po
+++ b/combo/locale/fr/LC_MESSAGES/django.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: combo 0\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-05-15 05:36+0000\n"
+"POT-Creation-Date: 2019-05-16 16:18+0000\n"
 "PO-Revision-Date: 2019-05-15 07:37+0200\n"
 "Last-Translator: Thomas NOËL <tnoel@entrouvert.com>\n"
 "Language: French\n"
@@ -39,6 +39,7 @@ msgid "Delete Asset"
 msgstr "Suppression de la ressource"
 
 #: apps/assets/templates/combo/manager_asset_confirm_delete.html:11
+#: apps/lingo/templates/lingo/paymentbackend_confirm_delete.html:11
 #: apps/lingo/templates/lingo/regie_confirm_delete.html:11
 #: apps/maps/templates/maps/map_layer_confirm_delete.html:11
 #: manager/templates/combo/generic_confirm_delete.html:11
@@ -48,6 +49,7 @@ msgstr "Êtes-vous sûr·e de vouloir supprimer ceci ?"
 #: apps/assets/templates/combo/manager_asset_confirm_delete.html:13
 #: apps/assets/templates/combo/manager_assets.html:62
 #: apps/assets/templates/combo/manager_assets.html:68
+#: apps/lingo/templates/lingo/paymentbackend_confirm_delete.html:13
 #: apps/lingo/templates/lingo/regie_confirm_delete.html:13
 #: apps/maps/templates/maps/map_layer_confirm_delete.html:13
 #: manager/templates/combo/delete_page.html:23
@@ -63,6 +65,8 @@ msgstr "Supprimer"
 #: apps/gallery/templates/combo/gallery_image_form.html:20
 #: apps/gallery/templates/combo/gallery_image_form.html:22
 #: apps/lingo/templates/lingo/combo/cancel-item.html:15
+#: apps/lingo/templates/lingo/paymentbackend_confirm_delete.html:14
+#: apps/lingo/templates/lingo/paymentbackend_form.html:19
 #: apps/lingo/templates/lingo/regie_confirm_delete.html:14
 #: apps/lingo/templates/lingo/regie_form.html:19
 #: apps/maps/templates/maps/map_layer_confirm_delete.html:14
@@ -121,7 +125,7 @@ msgstr ""
 "lors de l'édition des pages, dans la fenêtre de transfert d'images."
 
 #: apps/assets/templates/combo/manager_assets.html:34
-#: apps/lingo/templates/lingo/transaction_list.html:15
+#: apps/lingo/templates/lingo/transaction_list.html:16
 #: apps/search/__init__.py:25 apps/search/models.py:47
 #: apps/search/templates/combo/search-cell.html:6
 msgid "Search"
@@ -184,7 +188,7 @@ msgstr "La durée minimale de réservation est %s."
 
 #: apps/calendar/models.py:33 apps/dataviz/models.py:29
 #: apps/dataviz/models.py:67 apps/gallery/models.py:30
-#: apps/gallery/models.py:57 apps/lingo/models.py:604 apps/lingo/models.py:711
+#: apps/gallery/models.py:57 apps/lingo/models.py:619 apps/lingo/models.py:726
 #: apps/maps/models.py:250 apps/newsletters/models.py:42 apps/wcs/models.py:43
 #: apps/wcs/models.py:124 data/models.py:126 data/models.py:850
 #: data/models.py:904 data/models.py:950 data/models.py:1269
@@ -441,6 +445,7 @@ msgid "New Image"
 msgstr "Nouvelle image"
 
 #: apps/gallery/templates/combo/gallery_image_form.html:18
+#: apps/lingo/templates/lingo/paymentbackend_form.html:18
 #: apps/lingo/templates/lingo/regie_form.html:18
 #: apps/maps/templates/maps/map_layer_form.html:23
 #: apps/momo/templates/momo/momooptions_form.html:14
@@ -498,223 +503,229 @@ msgstr "PayZen"
 msgid "TIPI"
 msgstr "TIPI"
 
-#: apps/lingo/models.py:90 apps/lingo/templates/lingo/combo/items.html:11
-#: apps/maps/models.py:97 apps/notifications/models.py:72 apps/pwa/models.py:76
+#: apps/lingo/models.py:90 apps/lingo/models.py:107
+#: apps/lingo/templates/lingo/combo/items.html:11 apps/maps/models.py:97
+#: apps/notifications/models.py:72 apps/pwa/models.py:76
 msgid "Label"
 msgstr "Libellé"
 
-#: apps/lingo/models.py:91 apps/maps/models.py:98
+#: apps/lingo/models.py:92 apps/lingo/models.py:108 apps/maps/models.py:98
 msgid "Identifier"
 msgstr "Identifiant"
 
-#: apps/lingo/models.py:92
+#: apps/lingo/models.py:93 apps/lingo/models.py:109
 msgid "The identifier is used in webservice calls."
 msgstr "L'identifiant est utilisé dans les appels webservice."
 
-#: apps/lingo/models.py:93 apps/momo/models.py:71 apps/wcs/models.py:125
+#: apps/lingo/models.py:95
+msgid "Payment Service"
+msgstr "Service de paiement"
+
+#: apps/lingo/models.py:96
+msgid "Payment Service Options"
+msgstr "Options du service de paiement"
+
+#: apps/lingo/models.py:110 apps/momo/models.py:71 apps/wcs/models.py:125
 #: data/models.py:132
 msgid "Description"
 msgstr "Description"
 
-#: apps/lingo/models.py:94
-msgid "Payment Service"
-msgstr "Service de paiement"
-
-#: apps/lingo/models.py:97
-msgid "Payment Service Options"
-msgstr "Options du service de paiement"
-
-#: apps/lingo/models.py:98
+#: apps/lingo/models.py:111
 msgid "Default Regie"
 msgstr "Régie par défaut"
 
-#: apps/lingo/models.py:99
+#: apps/lingo/models.py:112
 msgid "Webservice URL to retrieve remote items"
 msgstr "Webservice de récupération des factures distantes"
 
-#: apps/lingo/models.py:101
+#: apps/lingo/models.py:114
 msgid "Webservice URL to compute extra fees"
 msgstr "Webservice de calcul des frais additionnels"
 
-#: apps/lingo/models.py:103
+#: apps/lingo/models.py:116
 msgid "Minimal payment amount"
 msgstr "Montant minimum de paiement"
 
-#: apps/lingo/models.py:107
+#: apps/lingo/models.py:120
 msgid "Custom text displayed on success"
 msgstr "Texte personnalisé affiché après un paiement"
 
-#: apps/lingo/models.py:114 apps/lingo/models.py:603
+#: apps/lingo/models.py:123
+msgid "Transaction Options"
+msgstr "Options de transaction"
+
+#: apps/lingo/models.py:129 apps/lingo/models.py:618
 msgid "Regie"
 msgstr "Régie"
 
-#: apps/lingo/models.py:138
+#: apps/lingo/models.py:153
 msgid "Your payment has been succesfully registered."
 msgstr "Votre paiement a été pris en compte."
 
-#: apps/lingo/models.py:257
+#: apps/lingo/models.py:272
 #, python-format
 msgid "Invoice %s to pay"
 msgstr "Facture n⁰ %s à payer"
 
-#: apps/lingo/models.py:259
+#: apps/lingo/models.py:274
 #, python-format
 msgid "Reminder: invoice %s to pay"
 msgstr "Rappel : facture n° %s à payer"
 
-#: apps/lingo/models.py:317
+#: apps/lingo/models.py:332
 msgid "Subject"
 msgstr "Objet"
 
-#: apps/lingo/models.py:318
+#: apps/lingo/models.py:333
 msgid "Source URL"
 msgstr "URL de source"
 
-#: apps/lingo/models.py:319
+#: apps/lingo/models.py:334
 msgid "Details"
 msgstr "Détails"
 
-#: apps/lingo/models.py:320 apps/lingo/templates/lingo/combo/items.html:14
+#: apps/lingo/models.py:335 apps/lingo/templates/lingo/combo/items.html:14
 #: apps/lingo/templates/lingo/tipi_form.html:40
-#: apps/lingo/templates/lingo/transaction_list.html:28
+#: apps/lingo/templates/lingo/transaction_list.html:29
 msgid "Amount"
 msgstr "Montant (TTC)"
 
-#: apps/lingo/models.py:401
+#: apps/lingo/models.py:416
 msgid "This invoice is in litigation."
 msgstr "Cette facture est en contentieux."
 
-#: apps/lingo/models.py:402
+#: apps/lingo/models.py:417
 msgid "Autobilling has been set for this invoice."
 msgstr "Un prélévement automatique a lieu pour cette facture."
 
-#: apps/lingo/models.py:403
+#: apps/lingo/models.py:418
 msgid "Due date is over."
 msgstr "La date limite est dépassée."
 
-#: apps/lingo/models.py:433
+#: apps/lingo/models.py:448
 msgid "Anonymous User"
 msgstr "Usager anonyme"
 
-#: apps/lingo/models.py:440
+#: apps/lingo/models.py:455
 msgid "Running"
 msgstr "En cours"
 
-#: apps/lingo/models.py:441
+#: apps/lingo/models.py:456
 msgid "Paid"
 msgstr "Payé"
 
-#: apps/lingo/models.py:442
+#: apps/lingo/models.py:457
 msgid "Paid (accepted)"
 msgstr "Payé (accepté)"
 
-#: apps/lingo/models.py:443
+#: apps/lingo/models.py:458
 msgid "Cancelled"
 msgstr "Annulé"
 
-#: apps/lingo/models.py:444
+#: apps/lingo/models.py:459
 msgid "Expired"
 msgstr "Expiré"
 
-#: apps/lingo/models.py:445
+#: apps/lingo/models.py:460
 msgid "Unknown"
 msgstr "Inconnu"
 
-#: apps/lingo/models.py:473
+#: apps/lingo/models.py:488
 #, python-format
 msgid "Invoice #%s"
 msgstr "Facture n⁰ %s"
 
-#: apps/lingo/models.py:488
+#: apps/lingo/models.py:503
 msgid "Validation"
 msgstr "Validation"
 
-#: apps/lingo/models.py:489
+#: apps/lingo/models.py:504
 msgid "Cancellation"
 msgstr "Annulation"
 
-#: apps/lingo/models.py:503 apps/lingo/templates/lingo/combo/basket.html:4
+#: apps/lingo/models.py:518 apps/lingo/templates/lingo/combo/basket.html:4
 msgid "Basket"
 msgstr "Panier"
 
-#: apps/lingo/models.py:526
+#: apps/lingo/models.py:541
 #, python-format
 msgid "%s€"
 msgstr "%s €"
 
-#: apps/lingo/models.py:549
+#: apps/lingo/models.py:564
 #: apps/lingo/templates/lingo/combo/recent_transactions.html:3
 msgid "Recent Transactions"
 msgstr "Transactions récentes"
 
-#: apps/lingo/models.py:578
+#: apps/lingo/models.py:593
 msgid "Basket Link"
 msgstr "Lien vers le panier"
 
-#: apps/lingo/models.py:605 data/models.py:733 data/models.py:738
+#: apps/lingo/models.py:620 data/models.py:733 data/models.py:738
 msgid "Text"
 msgstr "Texte"
 
-#: apps/lingo/models.py:609
+#: apps/lingo/models.py:624
 msgid "Loading invoices..."
 msgstr "Chargement des factures…"
 
-#: apps/lingo/models.py:629 apps/wcs/forms.py:96 apps/wcs/models.py:274
+#: apps/lingo/models.py:644 apps/wcs/forms.py:96 apps/wcs/models.py:274
 msgid "All"
 msgstr "Tout"
 
-#: apps/lingo/models.py:665
+#: apps/lingo/models.py:680
 msgid "Items History Cell"
 msgstr "Historique des factures"
 
-#: apps/lingo/models.py:678
+#: apps/lingo/models.py:693
 msgid "Active Items Cell"
 msgstr "Factures actives"
 
-#: apps/lingo/models.py:693
+#: apps/lingo/models.py:708
 msgid "Self declared invoice payment"
 msgstr "Déclaration manuelle de facture"
 
-#: apps/lingo/models.py:705
+#: apps/lingo/models.py:720
 msgid "Indigo/PES v2"
 msgstr "Indigo/PES v2"
 
-#: apps/lingo/models.py:706
+#: apps/lingo/models.py:721
 msgid "ROLMRE"
 msgstr "ROLMRE"
 
-#: apps/lingo/models.py:712
+#: apps/lingo/models.py:727
 msgid "TIPI payment service URL"
 msgstr "URL du service de paiement TIPI"
 
-#: apps/lingo/models.py:713 apps/lingo/templates/lingo/regie_list.html:5
+#: apps/lingo/models.py:728 apps/lingo/templates/lingo/regie_list.html:5
 #: apps/lingo/templates/lingo/regie_list.html:13
-#: apps/lingo/templates/lingo/transaction_list.html:7
+#: apps/lingo/templates/lingo/transaction_list.html:8
 msgid "Regies"
 msgstr "Régies"
 
-#: apps/lingo/models.py:713
+#: apps/lingo/models.py:728
 msgid "separated by commas"
 msgstr "régies séparées par des virgules"
 
-#: apps/lingo/models.py:714
+#: apps/lingo/models.py:729
 msgid "Control protocol"
 msgstr "Protocole de contrôle"
 
-#: apps/lingo/models.py:715 apps/lingo/models.py:716 apps/lingo/models.py:717
-#: apps/lingo/models.py:718 apps/lingo/models.py:719 apps/lingo/models.py:720
+#: apps/lingo/models.py:730 apps/lingo/models.py:731 apps/lingo/models.py:732
+#: apps/lingo/models.py:733 apps/lingo/models.py:734 apps/lingo/models.py:735
 msgid "Default value to be used in form"
 msgstr "Valeur par défaut à utiliser dans le formulaire"
 
-#: apps/lingo/models.py:721
+#: apps/lingo/models.py:736
 msgid "Test mode"
 msgstr "Mode test"
 
-#: apps/lingo/models.py:725
+#: apps/lingo/models.py:740
 msgid "TIPI Payment Form"
 msgstr "Formulaire de paiement TIPI"
 
 #: apps/lingo/templates/lingo/combo/basket.html:15
+#: apps/lingo/templates/lingo/paymentbackend_list.html:25
 #: apps/lingo/templates/lingo/regie_list.html:26
 #: apps/maps/templates/maps/manager_home.html:17
 #: apps/pwa/templates/combo/pwa/manager_home.html:44
@@ -971,6 +982,39 @@ msgstr ""
 "Veuillez patienter, votre navigateur est envoyé sur le site de paiement en "
 "ligne…"
 
+#: apps/lingo/templates/lingo/paymentbackend_form.html:6
+msgid "Edit Payment backend"
+msgstr "Modification de la plateforme de paiement"
+
+#: apps/lingo/templates/lingo/paymentbackend_form.html:8
+msgid "New Payment backend"
+msgstr "Nouvelle plateforme de paiement"
+
+#: apps/lingo/templates/lingo/paymentbackend_list.html:5
+#: apps/lingo/templates/lingo/paymentbackend_list.html:13
+#: apps/lingo/templates/lingo/transaction_list.html:7
+msgid "Payment backends"
+msgstr "Plateformes de paiement"
+
+#: apps/lingo/templates/lingo/paymentbackend_list.html:7
+#: apps/lingo/templates/lingo/regie_list.html:7
+#: apps/maps/templates/maps/manager_home.html:7
+#: manager/templates/combo/manager_home.html:8
+msgid "New"
+msgstr "Nouvelle"
+
+#: apps/lingo/templates/lingo/paymentbackend_list.html:31
+msgid ""
+"\n"
+"  This site doesn't have any payment backend yet. Click on the \"New\" "
+"button in the top\n"
+"  right of the page to add a first one.\n"
+"  "
+msgstr ""
+"\n"
+"  Ce site n'a pas encore de plateforme de paiement configurée.  Cliquez sur le bouton « Nouvelle »   "
+"dans le coin supérieur droit de la page pour en ajouter une première.  "
+
 #: apps/lingo/templates/lingo/regie_form.html:6
 msgid "Edit Regie"
 msgstr "Modification de la régie"
@@ -979,12 +1023,6 @@ msgstr "Modification de la régie"
 msgid "New Regie"
 msgstr "Nouvelle régie"
 
-#: apps/lingo/templates/lingo/regie_list.html:7
-#: apps/maps/templates/maps/manager_home.html:7
-#: manager/templates/combo/manager_home.html:8
-msgid "New"
-msgstr "Nouvelle"
-
 #: apps/lingo/templates/lingo/regie_list.html:24
 msgid "(default regie)"
 msgstr "(régie par défaut)"
@@ -1042,35 +1080,35 @@ msgstr "Courriel"
 msgid "Transactions"
 msgstr "Transactions"
 
-#: apps/lingo/templates/lingo/transaction_list.html:8
+#: apps/lingo/templates/lingo/transaction_list.html:9
 msgid "download CSV"
 msgstr "Télécharger au format CSV"
 
-#: apps/lingo/templates/lingo/transaction_list.html:16
+#: apps/lingo/templates/lingo/transaction_list.html:17
 msgid "(supports order identifiers, transaction identifiers, and dates)"
 msgstr "(sur dates et identifants de paiement et de transaction)"
 
-#: apps/lingo/templates/lingo/transaction_list.html:24
+#: apps/lingo/templates/lingo/transaction_list.html:25
 msgid "Order Identifier"
 msgstr "Identifiant de paiement"
 
-#: apps/lingo/templates/lingo/transaction_list.html:25
+#: apps/lingo/templates/lingo/transaction_list.html:26
 msgid "Transaction Identifier"
 msgstr "Identifiant de transaction"
 
-#: apps/lingo/templates/lingo/transaction_list.html:26
+#: apps/lingo/templates/lingo/transaction_list.html:27
 msgid "Date"
 msgstr "Date"
 
-#: apps/lingo/templates/lingo/transaction_list.html:27
+#: apps/lingo/templates/lingo/transaction_list.html:28
 msgid "User"
 msgstr "Usager"
 
-#: apps/lingo/templates/lingo/transaction_list.html:29
+#: apps/lingo/templates/lingo/transaction_list.html:30
 msgid "Items"
 msgstr "Éléments"
 
-#: apps/lingo/templates/lingo/transaction_list.html:54
+#: apps/lingo/templates/lingo/transaction_list.html:55
 #, python-format
 msgid ""
 "\n"
@@ -1081,7 +1119,7 @@ msgstr ""
 "Aucune transaction correspondant à « %(query)s » trouvée.\n"
 "  "
 
-#: apps/lingo/templates/lingo/transaction_list.html:58
+#: apps/lingo/templates/lingo/transaction_list.html:59
 msgid ""
 "\n"
 "  This site doesn't have any transaction yet.\n"
@@ -1091,75 +1129,75 @@ msgstr ""
 "Il n'y a encore aucune transaction sur ce site.\n"
 "  "
 
-#: apps/lingo/views.py:303
+#: apps/lingo/views.py:308
 #, python-format
 msgid "Minimal payment amount is %s €."
 msgstr "Le montant minimal pour les paiement est de %s €."
 
-#: apps/lingo/views.py:308 apps/lingo/views.py:381
+#: apps/lingo/views.py:313 apps/lingo/views.py:388
 msgid "Invalid grouping for basket items."
 msgstr "Regroupement d'éléments de panier invalide."
 
-#: apps/lingo/views.py:372
+#: apps/lingo/views.py:379
 msgid "Payment requires to be logged in."
 msgstr "Le paiement nécessite d'être identifié."
 
-#: apps/lingo/views.py:394
+#: apps/lingo/views.py:401
 msgid "Invalid grouping for basket items: different capture dates."
 msgstr ""
 "Regroupement d'éléments de panier invalide : différentes dates de capture."
 
-#: apps/lingo/views.py:398
+#: apps/lingo/views.py:405
 msgid "You must give an email address."
 msgstr "Vous devez fournir une adresse électronique."
 
-#: apps/lingo/views.py:410
+#: apps/lingo/views.py:417
 msgid "No item payment allowed for anonymous users."
 msgstr "Pas de paiement autorisé pour les usagers anonymes."
 
-#: apps/lingo/views.py:415
+#: apps/lingo/views.py:422
 msgid "No item payment allowed as extra fees set."
 msgstr "Pas de paiement autorisé car il y a des frais supplémentaires définis."
 
-#: apps/lingo/views.py:418
+#: apps/lingo/views.py:425
 msgid "Wrong item: payment not allowed."
 msgstr "Mauvaise sélection : paiement non autorisé."
 
-#: apps/lingo/views.py:571
+#: apps/lingo/views.py:585
 msgid ""
 "We are sorry but the payment service failed to provide a correct answer."
 msgstr ""
 "Nous sommes désolés, le service de paiement n'a pas envoyé une réponse "
 "valide."
 
-#: apps/lingo/views.py:615
+#: apps/lingo/views.py:629
 msgid "We are sorry but an error occured when retrieving the invoice."
 msgstr ""
 "Nous sommes désolés mais une erreur a eu lieu à la récupération de la "
 "facture."
 
-#: apps/lingo/views.py:643
+#: apps/lingo/views.py:657
 msgid "No item was found."
 msgstr "Aucun élément n'a été trouvé."
 
-#: apps/lingo/views.py:673
+#: apps/lingo/views.py:687
 msgid "An error occured when removing the item. (no authenticated user)"
 msgstr ""
 "Une erreur a eu lieu lors de la suppression.  (pas d'utilisateur authentifié)"
 
-#: apps/lingo/views.py:677
+#: apps/lingo/views.py:691
 msgid "This item cannot be removed."
 msgstr "Cet élément ne peut être retiré."
 
-#: apps/lingo/views.py:682
+#: apps/lingo/views.py:696
 msgid "An error occured when removing the item."
 msgstr "Une erreur a eu lieu lors de la suppression."
 
-#: apps/lingo/views.py:706
+#: apps/lingo/views.py:720
 msgid "Sorry, the provided amount is invalid."
 msgstr "Le montant que vous avez entré n'est pas valide."
 
-#: apps/lingo/views.py:719
+#: apps/lingo/views.py:733
 msgid "Sorry, no invoice were found with that number and amount."
 msgstr ""
 "Une facture avec ce numéro et ce montant n'a pu être trouvée. Veuillez "
@@ -2634,6 +2672,11 @@ msgstr "Bandeau"
 msgid "Middle column"
 msgstr "Colonne du milieu"
 
+#, fuzzy
+#~| msgid "Are you sure you want to delete this?"
+#~ msgid "Are you sure you want to delete this ?"
+#~ msgstr "Êtes-vous sûr·e de vouloir supprimer ceci ?"
+
 #~ msgid "Restrict to logged-in users"
 #~ msgstr "Restreindre aux utilisateurs connectés"