frontend/src/components/production/ocp/ManualPrinting/ManualPrintForm.tsx

@@ -243,7 +243,8 @@ export default function ManualPrintForm() {
                         <Textarea
                             //label="Comments"
                             placeholder="add more info as needed."
-                            {...register("additionalComments")}
+                            {...(register("additionalComments"),
+                            { required: true })}
                         />
                     </div>