> For the complete documentation index, see [llms.txt](https://docs.20lab.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.20lab.app/sui-features/unchangeable-sui-values.md).

# Unchangeable Sui values

### Understanding Sui Token Immutability

On Sui, any features you select during the token generation phase will be permanently saved on-chain. This is an important aspect of blockchain technology that ensures transparency and trust. Some of these features can be modified by authority wallets later, but others are completely immutable once your token is deployed.

Make sure you carefully consider these settings before deploying your token, as they will be permanent for the entire lifetime of your token.

### Completely Unchangeable Values

Here are all the values that cannot be changed after your token is created (**even by authority wallets**):

#### General Token Properties

* **Blockchain**: The network your token is deployed on (Sui Mainnet, Testnet or Devnet)
* **Module name**: The unique identifier for your token's smart contract module
* **Decimals**: The number of decimal places your token supports (affects how divisible your token is)
* **Total supply**: The maximum number of tokens that can ever exist (only unchangeable if treasury cap is revoked)

## General

* Blockchain
* Module name
* Decimals
* Total supply (If treasury cap is revoked)

### What Can Still Be Changed

The rest of the token values can be modified later by authority wallets within the same or similar limits as available in the generator.


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