diff --git a/web/src/components/tickets/delete-ticket-dialog.tsx b/web/src/components/tickets/delete-ticket-dialog.tsx
index 75d1b31..9cb51c5 100644
--- a/web/src/components/tickets/delete-ticket-dialog.tsx
+++ b/web/src/components/tickets/delete-ticket-dialog.tsx
@@ -6,6 +6,7 @@ import { useMutation } from "convex/react"
 // @ts-ignore
 import { api } from "@/convex/_generated/api"
 import type { Id } from "@/convex/_generated/dataModel"
+import { useAuth } from "@/lib/auth-client"
 import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogDescription, DialogTrigger } from "@/components/ui/dialog"
 import { Button } from "@/components/ui/button"
 import { AlertTriangle, Trash2 } from "lucide-react"
@@ -16,12 +17,14 @@ export function DeleteTicketDialog({ ticketId }: { ticketId: Id<"tickets"> }) {
   const remove = useMutation(api.tickets.remove)
   const [open, setOpen] = useState(false)
   const [loading, setLoading] = useState(false)
+  const { userId } = useAuth()
 
   async function confirm() {
     setLoading(true)
     toast.loading("Excluindo ticket...", { id: "del" })
     try {
-      await remove({ ticketId, actorId: undefined as unknown as Id<"users"> })
+      if (!userId) throw new Error("No user")
+      await remove({ ticketId, actorId: userId as Id<"users"> })
       toast.success("Ticket excluído.", { id: "del" })
       setOpen(false)
       router.push("/tickets")
@@ -58,4 +61,3 @@ export function DeleteTicketDialog({ ticketId }: { ticketId: Id<"tickets"> }) {
     </Dialog>
   )
 }
-
diff --git a/web/src/components/tickets/new-ticket-dialog.tsx b/web/src/components/tickets/new-ticket-dialog.tsx
index e69f978..d52cd73 100644
--- a/web/src/components/tickets/new-ticket-dialog.tsx
+++ b/web/src/components/tickets/new-ticket-dialog.tsx
@@ -46,13 +46,18 @@ export function NewTicketDialog() {
 
   async function submit(values: z.infer<typeof schema>) {
     if (!userId) return
+    const subjectTrimmed = (values.subject ?? "").trim()
+    if (subjectTrimmed.length < 3) {
+      form.setError("subject", { type: "min", message: "Informe um assunto" })
+      return
+    }
     setLoading(true)
     toast.loading("Criando ticket…", { id: "new-ticket" })
     try {
       const sel = queues.find((q) => q.name === values.queueName)
       const id = await create({
         tenantId: DEFAULT_TENANT_ID,
-        subject: values.subject,
+        subject: subjectTrimmed,
         summary: values.summary,
         priority: values.priority,
         channel: values.channel,
diff --git a/web/src/components/tickets/priority-select.tsx b/web/src/components/tickets/priority-select.tsx
index d35d8f2..34e53ab 100644
--- a/web/src/components/tickets/priority-select.tsx
+++ b/web/src/components/tickets/priority-select.tsx
@@ -5,7 +5,7 @@ import { useMutation } from "convex/react"
 // @ts-ignore
 import { api } from "@/convex/_generated/api"
 import type { Id } from "@/convex/_generated/dataModel"
-import type { TicketStatus } from "@/lib/schemas/ticket"
+import { useAuth } from "@/lib/auth-client"
 import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select"
 import { Badge } from "@/components/ui/badge"
 import { toast } from "sonner"
@@ -33,6 +33,7 @@ function badgeClass(p: string) {
 export function PrioritySelect({ ticketId, value }: { ticketId: Id<"tickets">; value: "LOW" | "MEDIUM" | "HIGH" | "URGENT" }) {
   const updatePriority = useMutation(api.tickets.updatePriority)
   const [priority, setPriority] = useState(value)
+  const { userId } = useAuth()
   return (
     <Select
       value={priority}
@@ -41,7 +42,8 @@ export function PrioritySelect({ ticketId, value }: { ticketId: Id<"tickets">; v
         setPriority(val as typeof priority)
         toast.loading("Atualizando prioridade...", { id: "prio" })
         try {
-          await updatePriority({ ticketId, priority: val as any, actorId: undefined as unknown as Id<"users"> })
+          if (!userId) throw new Error("No user")
+          await updatePriority({ ticketId, priority: val as any, actorId: userId as Id<"users"> })
           toast.success("Prioridade atualizada!", { id: "prio" })
         } catch {
           setPriority(prev)
@@ -64,4 +66,3 @@ export function PrioritySelect({ ticketId, value }: { ticketId: Id<"tickets">; v
     </Select>
   )
 }
-