# Fulfillment sync failed?

When syncing fulfillments from TikTok Shop (TTS) to Shopify via EcomSend Connector, you may see the following sync statuses:

* **Not synced:** The fulfillment has not been synced yet.
* **Synced:** The fulfillment has been successfully synced via EcomSend Connector.
* **Sync failed:** EcomSend Connector attempted to sync the order but failed.

<figure><img src="https://3351395997-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FYGyD7kgIm6ylKeSkZt1y%2Fuploads%2FF2aUqpJCVyoSYbzWXc1K%2Fimage.png?alt=media&#x26;token=55c57c3f-8141-44d7-b521-cea9b3e979e1" alt=""><figcaption></figcaption></figure>

👉 For fulfillments that failed to sync, **click the failed badge** to view detailed information. Follow the instructions to identify the issue, make updates, and then re-sync the fulfillment.

If you have any questions, please feel free to contact our professional 24/7 support team.

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## Common failure examples and solutions

<figure><img src="https://3351395997-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FYGyD7kgIm6ylKeSkZt1y%2Fuploads%2FwPGQO5wQ8jCSkMM0oGBl%2Fimage.png?alt=media&#x26;token=30d2456e-7eb6-4134-88f3-6fe084188e9c" alt=""><figcaption></figcaption></figure>

**Reason:** Your carrier \*\* is not included in TikTok Shop’s list of integrated carriers.

**Solution:** TikTok Shop **only supports** shipments handled by carriers that are [**officially integrated**](https://seller-us.tiktok.com/university/essay?knowledge_id=8308896260065025\&role=1\&course_type=1\&from=search%7BcontentIdParams%7D\&identity=1\&anchor_link=EB7F00D0) with the platform. Please use one of the supported carriers.\
If your carrier *is* supported by TikTok Shop but appears under a different name in Shopify, you can use our [**Carrier Mapping**](https://docs-connector.ecomsend.com/ecomsend-connector/settings/order-and-fulfillment-sync-settings#sync-rules) feature to link them correctly.

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<figure><img src="https://3351395997-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FYGyD7kgIm6ylKeSkZt1y%2Fuploads%2FoVXoGdD4TbYvkhAO0PZE%2Fimage.png?alt=media&#x26;token=150e5ec1-7060-42f5-85f3-ac15cc852882" alt=""><figcaption></figcaption></figure>

**Reason:** The tracking number can only be updated once.

**Solution:** TikTok Shop allows each tracking number to be updated **only once**, and the update must occur **within 72 hours** of fulfillment.\
If you need to change the tracking number again after that window, please **contact TikTok Shop support** for assistance.

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<figure><img src="https://3351395997-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FYGyD7kgIm6ylKeSkZt1y%2Fuploads%2FWsAE5vM5vW8z5yMlQVbg%2Fimage.png?alt=media&#x26;token=bdca7bab-208b-4952-b2c0-79662d18c74c" alt=""><figcaption></figcaption></figure>

**Reason:** TikTok order line items are already fulfilled with different items, cannot create new fulfillment

**Solution:** If you need to proceed with a new fulfillment, please **contact TikTok Shop suppor**t to **cancel the previous fulfillment**, then resync the order afterward.

**Need help?** Feel free to contact us via online chat or [email](mailto:undefined). Our world-class support team is available 24/7 and always ready to assist you. 🌻