diff --git a/.changeset/rare-spiders-argue.md b/.changeset/rare-spiders-argue.md
new file mode 100644
index 0000000..ea71b6f
--- /dev/null
+++ b/.changeset/rare-spiders-argue.md
@@ -0,0 +1,5 @@
+---
+"saleor-app-emails-and-messages": patch
+---
+
+Added validation for Sendgrid events form. Enabling event without a template is no longer allowed to avoid misconfiguration and undelivered emails.
diff --git a/apps/emails-and-messages/src/components/box-footer.tsx b/apps/emails-and-messages/src/components/box-footer.tsx
index 22df536..0507615 100644
--- a/apps/emails-and-messages/src/components/box-footer.tsx
+++ b/apps/emails-and-messages/src/components/box-footer.tsx
@@ -12,6 +12,7 @@ export const BoxFooter = (props: BoxProps) => {
       gap={defaultPadding}
       flexDirection="row"
       justifyContent="flex-end"
+      alignItems="center"
       {...props}
     >
       {props.children}
diff --git a/apps/emails-and-messages/src/modules/sendgrid/configuration/sendgrid-config-input-schema.test.ts b/apps/emails-and-messages/src/modules/sendgrid/configuration/sendgrid-config-input-schema.test.ts
new file mode 100644
index 0000000..a4c088e
--- /dev/null
+++ b/apps/emails-and-messages/src/modules/sendgrid/configuration/sendgrid-config-input-schema.test.ts
@@ -0,0 +1,58 @@
+import { expect, describe, it } from "vitest";
+import { sendgridUpdateEventArraySchema } from "./sendgrid-config-input-schema";
+import { ZodError } from "zod";
+
+describe("sendgridUpdateEventArraySchema", async function () {
+  it("No errors should be thrown, when active event has specified template", async () => {
+    sendgridUpdateEventArraySchema.parse({
+      configurationId: "123",
+      events: [
+        {
+          eventType: "ORDER_CREATED",
+          active: true,
+          template: "123",
+        },
+      ],
+    });
+  });
+  it("No errors should be thrown, when non active event has no template", async () => {
+    sendgridUpdateEventArraySchema.parse({
+      configurationId: "123",
+      events: [
+        {
+          eventType: "ORDER_CREATED",
+          active: false,
+          template: undefined,
+        },
+      ],
+    });
+  });
+
+  it("Error should be thrown, when any of active events has no template", async () => {
+    await expect(async () =>
+      sendgridUpdateEventArraySchema.parse({
+        configurationId: "123",
+        events: [
+          {
+            eventType: "ORDER_CREATED",
+            active: true,
+            template: "123",
+          },
+          {
+            eventType: "ORDER_FULFILLED",
+            active: true,
+            template: undefined,
+          },
+        ],
+      })
+    ).rejects.toThrow(
+      new ZodError([
+        {
+          code: "custom",
+          message: "All active events must have assigned template.",
+          path: ["events"],
+        },
+      ])
+    );
+  });
+});
diff --git a/apps/emails-and-messages/src/modules/sendgrid/configuration/sendgrid-config-input-schema.ts b/apps/emails-and-messages/src/modules/sendgrid/configuration/sendgrid-config-input-schema.ts
index de4a492..7386c11 100644
--- a/apps/emails-and-messages/src/modules/sendgrid/configuration/sendgrid-config-input-schema.ts
+++ b/apps/emails-and-messages/src/modules/sendgrid/configuration/sendgrid-config-input-schema.ts
@@ -89,7 +89,19 @@ export type SendgridUpdateEvent = z.infer<typeof sendgridUpdateEventSchema>;
 
 export const sendgridUpdateEventArraySchema = z.object({
   configurationId: z.string(),
-  events: z.array(sendgridConfigurationEventSchema),
+  events: z
+    .array(sendgridConfigurationEventSchema)
+    /*
+     * Pass the validation if all the events are in one of two states:
+     * 1. Inactive
+     * 2. Active and have a template
+     */
+    .refine(
+      (data) => data.every((event) => event.active === false || (event.active && event.template)),
+      {
+        message: "All active events must have assigned template.",
+      }
+    ),
 });
 
 export type SendgridUpdateEventArray = z.infer<typeof sendgridUpdateEventArraySchema>;
diff --git a/apps/emails-and-messages/src/modules/sendgrid/ui/sendgrid-events-section.tsx b/apps/emails-and-messages/src/modules/sendgrid/ui/sendgrid-events-section.tsx
index e3a066f..7d8a741 100644
--- a/apps/emails-and-messages/src/modules/sendgrid/ui/sendgrid-events-section.tsx
+++ b/apps/emails-and-messages/src/modules/sendgrid/ui/sendgrid-events-section.tsx
@@ -34,7 +34,13 @@ export const SendgridEventsSection = ({ configuration }: SendgridEventsSectionPr
     messageEventTypesLabels[a.eventType].localeCompare(messageEventTypesLabels[b.eventType])
   );
 
-  const { control, register, handleSubmit, setError } = useForm<SendgridUpdateEventArray>({
+  const {
+    control,
+    register,
+    handleSubmit,
+    setError,
+    formState: { errors },
+  } = useForm<SendgridUpdateEventArray>({
     defaultValues: {
       configurationId: configuration.id,
       events: eventsSorted,
@@ -132,6 +138,7 @@ export const SendgridEventsSection = ({ configuration }: SendgridEventsSectionPr
             </Table.Container>
           </Box>
           <BoxFooter>
+            {errors.events && <Text color={"iconCriticalDefault"}>{errors.events.message}</Text>}
             <Button type="submit">Save provider</Button>
           </BoxFooter>
         </BoxWithBorder>