loopback/locale/en.json

@@ -226,5 +226,6 @@
 	"This password can only be changed by the user themselves": "This password can only be changed by the user themselves",
 	"They're not your subordinate": "They're not your subordinate",
 	"InvoiceIn is already booked": "InvoiceIn is already booked",
-	"This workCenter is already assigned to this agency": "This workCenter is already assigned to this agency"
+	"This workCenter is already assigned to this agency": "This workCenter is already assigned to this agency",
+	"You can only have one PDA": "You can only have one PDA"
 }

loopback/locale/es.json

@@ -357,6 +357,7 @@
 	"This workCenter is already assigned to this agency": "Este centro de trabajo ya está asignado a esta agencia",
 	"Select ticket or client": "Elija un ticket o un client",
 	"It was not able to create the invoice": "No se pudo crear la factura",
-	"This PDA is already assigned to another user": "This PDA is already assigned to another user",
-	"ticketCommercial": "El ticket {{ ticket }} para el vendedor {{ salesMan }} está en preparación. (mensaje generado automáticamente)"
+	"ticketCommercial": "El ticket {{ ticket }} para el vendedor {{ salesMan }} está en preparación. (mensaje generado automáticamente)",
+	"This PDA is already assigned to another user": "Este PDA ya está asignado a otro usuario",
+	"You can only have one PDA": "Solo puedes tener un PDA"
 }

modules/worker/back/models/device-production-user.js

@@ -3,6 +3,9 @@ module.exports = Self => {
     Self.rewriteDbError(function(err) {
         if (err.code === 'ER_DUP_ENTRY')
             return new UserError(`This PDA is already assigned to another user`);
+
+        if (err.code === 'ER_SIGNAL_EXCEPTION' && err.sqlMessage === 'You can only have one active PDA')
+            return new UserError(err.sqlMessage);
         return err;
     });
 };