# Migration FAQ

Below are the most frequently asked questions specifically regarding the migration process from Fantom Opera to Sonic.

<details>

<summary>What if I hold FTM somewhere other than Opera?</summary>

Check out the [Sonic Upgrade Handbook](https://blog.soniclabs.com/the-ultimate-sonic-upgrade-handbook-ftm-to-s/).

</details>

<details>

<summary>Does the upgrade portal handle app token migrations?</summary>

No, the official upgrade portal only supports FTM to S migration on Opera. Each project must implement its own migration solution.

</details>

<details>

<summary>What happens to my LP positions during migration<strong>?</strong></summary>

LP positions must be broken, tokens migrated individually, and positions re-created on Sonic.

</details>

<details>

<summary>How long will two-way migration be available<strong>?</strong></summary>

Two-way migration between FTM and S will be available for 90 days following launch, after which it will switch to one-way from FTM to S.

</details>

<details>

<summary>What happens if I don't migrate during the two-way period<strong>?</strong></summary>

You'll still be able to upgrade from FTM to S but not back to FTM from S.

</details>

<details>

<summary>Will my transaction history migrate?</summary>

No, transaction history remains on the original chain. Sonic is a fresh chain with no history.

</details>

<details>

<summary>How do I know the migration method used by a token I'm holding<strong>?</strong></summary>

Check your project's announcements or contact the team directly.

</details>


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