> ## Documentation Index
> Fetch the complete documentation index at: https://docs.polygon.technology/llms.txt
> Use this file to discover all available pages before exploring further.

# Submit mapping request

> Steps to submit a token mapping request to enable bridging between Ethereum and Polygon PoS.

Submit a mapping request to enable your token for bridging between Ethereum and Polygon PoS.

<Note>
  Thinking about bridging a popular token? Refer to the [reference guide on Polygon Portal](/tools/wallets/portal/).
</Note>

## Steps to submit a mapping request

1. To submit a request for mapping your token on Polygon PoS, start by navigating to [the Google form available here](https://docs.google.com/forms/d/e/1FAIpQLSeq8HTef2dYpRx35_WWYhyr4C146K9dfhyYJQcoD1RuTTVABg/viewform).

2. Choose a **Network** option depending upon the chain on which you're looking to map your token. This would be **Sepolia ↔ Polygon Amoy** for testnet, and **Ethereum ↔ Polygon PoS** for mainnet.

<img src="https://mintcdn.com/polygon-labs/PnA6B0XDAD7POEHb/img/pos/token-mapping-1.png?fit=max&auto=format&n=PnA6B0XDAD7POEHb&q=85&s=eb8afa73e3a0975ed094d1fcba5fceed" alt="form-1" maxWidth="50%" width="584" height="290" data-path="img/pos/token-mapping-1.png" />

3. Next, input the contract address for the token contract that you've deployed on Sepolia/Ethereum mainnet in the **Root Contract Address (L1)** field.

<img src="https://mintcdn.com/polygon-labs/PnA6B0XDAD7POEHb/img/pos/token-mapping-2.png?fit=max&auto=format&n=PnA6B0XDAD7POEHb&q=85&s=c030db7953be0ed6d11ce8ea632d56d4" alt="form-2" maxWidth="50%" width="640" height="216" data-path="img/pos/token-mapping-2.png" />

4. Choose the correct **Token Type** for your token. i.e., [ERC-20](https://eips.ethereum.org/EIPS/eip-20) for a standard token, [ERC-721](https://eips.ethereum.org/EIPS/eip-721) for an NFT, or [ERC-1155](https://eips.ethereum.org/EIPS/eip-1155) for a multi token.

<img src="https://mintcdn.com/polygon-labs/PnA6B0XDAD7POEHb/img/pos/token-mapping-3.png?fit=max&auto=format&n=PnA6B0XDAD7POEHb&q=85&s=d50bb3d3e80346c73127366bdc590bb9" alt="form-3" maxWidth="25%" width="230" height="344" data-path="img/pos/token-mapping-3.png" />

5. Finally, select **Submit** to send in your request. The Polygon team will review your mapping request, and get back to you with a response. This generally takes up to 7 days.

<Note title="Token list">
  * Check out the list of supported tokens available in JSON format by following this URL: [https://api-polygon-tokens.polygon.technology/tokenlists/polygonTokens.tokenlist.json](https://api-polygon-tokens.polygon.technology/tokenlists/polygonTokens.tokenlist.json)
  * Once approved, your token will be added to the above list!
</Note>