diff --git a/server-rs/crates/platform-tripo/src/multiview_to_model/client.rs b/server-rs/crates/platform-tripo/src/multiview_to_model/client.rs
index 1ece59230..fd650950a 100644
--- a/server-rs/crates/platform-tripo/src/multiview_to_model/client.rs
+++ b/server-rs/crates/platform-tripo/src/multiview_to_model/client.rs
@@ -9,7 +9,7 @@ use tripo3d_sdk::{models::FileInput, params::MultiviewToModelParams};
 
 use crate::common::{
     TripoError, TripoField, TripoGenerationOptions, TripoProviderClient, TripoTaskHandle,
-    TripoValidationReason, validate_generation_options,
+    TripoValidationReason, validate_generation_options, validate_task_id,
 };
 
 impl TripoProviderClient {
@@ -48,14 +48,7 @@ impl TripoProviderClient {
                     });
                 }
             }
-            Model3dMultiviewInputs::TaskId { task_id } if task_id.trim().is_empty() => {
-                return Err(TripoError::InvalidParameters {
-                    field: Some(TripoField::Inputs),
-                    reason: TripoValidationReason::Required,
-                    message: "task_id must not be blank".into(),
-                });
-            }
-            Model3dMultiviewInputs::TaskId { .. } => {}
+            Model3dMultiviewInputs::TaskId { task_id } => validate_task_id(task_id)?,
         }
         validate_generation_options(&TripoGenerationOptions {
             model: request.model,