diff --git a/htdocs/admin/oauth.php b/htdocs/admin/oauth.php
index e3c1ce501d7..1b0502a495a 100644
--- a/htdocs/admin/oauth.php
+++ b/htdocs/admin/oauth.php
@@ -115,7 +115,7 @@ if ($action == 'confirm_delete') {
 
 	$globalkey = empty($provider) ? $label : $label.'-'.$provider;
 
-	if (getDolGlobalString($globalkey.'_ID') && getDolGlobalString($globalkey.'_SECRET')) {
+	if (getDolGlobalString($globalkey.'_ID') && getDolGlobalString($globalkey.'_SECRET')) { // If ID and secret exist, we delete first the token
 		$backtourl = DOL_URL_ROOT.'/admin/oauth.php?action=delete_entry&provider='.$provider.'&label='.$label.'&token='.newToken();
 		$urlwithouturlroot = preg_replace('/'.preg_quote(DOL_URL_ROOT, '/').'$/i', '', trim($dolibarr_main_url_root));
 		$urlwithroot = $urlwithouturlroot.DOL_URL_ROOT;
@@ -145,10 +145,10 @@ if ($action == 'delete_entry') {
 	$globalkey = empty($provider) ? $label : $label.'-'.$provider;
 
 	if (!dolibarr_del_const($db, $globalkey.'_NAME', $conf->entity) || !dolibarr_del_const($db, $globalkey.'_ID', $conf->entity) || !dolibarr_del_const($db, $globalkey.'_SECRET', $conf->entity) ||  !dolibarr_del_const($db, $globalkey.'_URLAUTHORIZE', $conf->entity) || !dolibarr_del_const($db, $globalkey.'_SCOPE', $conf->entity)) {
-		setEventMessage("Error in entry deletion", 'errors');
+		setEventMessages($langs->trans("ErrorInEntryDeletion"), null, 'errors');
 		$error++;
 	} else {
-		setEventMessage("Entry deleted", 'mesgs');
+		setEventMessages($langs->trans("EntryDeleted"), null);
 	}
 }
 
@@ -162,7 +162,7 @@ $form = new Form($db);
 // Confirmation of action process
 if ($action == 'delete') {
 	$formquestion = array();
-	$formconfirm = $form->formconfirm($_SERVER["PHP_SELF"].'?provider='.GETPOST('provider').'&label='.GETPOST('label'), $langs->trans('OAuthServiceConfirmDelete'), $langs->trans('OAuthServiceConfirmDelete'), 'confirm_delete', $formquestion, 0, 1, 220);
+	$formconfirm = $form->formconfirm($_SERVER["PHP_SELF"].'?provider='.GETPOST('provider').'&label='.GETPOST('label'), $langs->trans('OAuthServiceConfirmDeleteTitle'), $langs->trans('OAuthServiceConfirmDeleteMessage'), 'confirm_delete', $formquestion, 0, 1, 220);
 }
 
 // Print form confirm
diff --git a/htdocs/langs/en_US/admin.lang b/htdocs/langs/en_US/admin.lang
index 02b9ebc839a..502953f0140 100644
--- a/htdocs/langs/en_US/admin.lang
+++ b/htdocs/langs/en_US/admin.lang
@@ -1081,6 +1081,10 @@ DictionaryAssetDisposalType=Type of disposal of assets
 TypeOfUnit=Type of unit
 SetupSaved=Setup saved
 SetupNotSaved=Setup not saved
+OAuthServiceConfirmDeleteTitle=Delete OAuth entry
+OAuthServiceConfirmDeleteMessage=Are you sure you want to delete this OAuth entry ? All existing tokens for it will also be deleted.
+ErrorInEntryDeletion=Error in entry deletion
+EntryDeleted=Entry deleted
 BackToModuleList=Back to Module list
 BackToDictionaryList=Back to Dictionaries list
 TypeOfRevenueStamp=Type of tax stamp
@@ -2310,7 +2314,7 @@ Images=Images
 Posts=Posts
 MaxNumberOfImagesInGetPost=Max number of images allowed in a HTML field submitted in a form
 MaxNumberOfPostOnPublicPagesByIP=Max number of posts on public pages with an IP Address
-CIDLookupURL=The module brings an URL that can be used by an external tool to get the name of a thirdparty or contact from its phone number. URL to use is: 
+CIDLookupURL=The module brings an URL that can be used by an external tool to get the name of a thirdparty or contact from its phone number. URL to use is:
 ScriptIsEmpty=The script is empty
 ShowHideTheNRequests=Show/hide the %s SQL request(s)
 DefinedAPathForAntivirusCommandIntoSetup=Define a path for an antivirus program into <b>%s</b>
@@ -2323,5 +2327,5 @@ CssOnList=Css on list pages
 HelpCssOnEditDesc=The Css used when editing the field.<br>Example: "minwiwdth100 maxwidth500 widthcentpercentminusx"
 HelpCssOnViewDesc=The Css used when viewing the field.
 HelpCssOnListDesc=The Css used when field is inside a list table.<br>Example: "tdoverflowmax200"
-RECEPTION_PDF_HIDE_ORDERED=Hide the quantity ordered on the generated documents for receptions 
+RECEPTION_PDF_HIDE_ORDERED=Hide the quantity ordered on the generated documents for receptions
 MAIN_PDF_RECEPTION_DISPLAY_AMOUNT_HT=Show the price on the generated documents for receptions
diff --git a/htdocs/langs/fr_FR/admin.lang b/htdocs/langs/fr_FR/admin.lang
index c3de798bcef..313e151a044 100644
--- a/htdocs/langs/fr_FR/admin.lang
+++ b/htdocs/langs/fr_FR/admin.lang
@@ -1081,6 +1081,10 @@ DictionaryAssetDisposalType=Type de cession d'actifs
 TypeOfUnit=Type d'unité
 SetupSaved=Configuration sauvegardée
 SetupNotSaved=Configuration non enregistrée
+OAuthServiceConfirmDeleteTitle=Suprresion d'entrée OAuth
+OAuthServiceConfirmDeleteMessage=Êtes vous sur de vouloir supprimer cette entrée OAuth? Tous les jetons existants associés seront supprimés.
+ErrorInEntryDeletion=Erreur dans la suppression
+EntryDeleted=Entrée supprimée
 BackToModuleList=Retour liste des modules
 BackToDictionaryList=Retour liste des dictionnaires
 TypeOfRevenueStamp=Type de timbre fiscal