# What to Know Before You Deploy

### <mark style="color:red;">**Once your contract is deployed, there are certain changes that cannot be made without deploying a new contract.**</mark>&#x20;

Once deployed, you cannot:

* Add a new mint phase.
* Edit the supply of a mint phase.
* Alter primary mint sales revenue split.&#x20;
* Change from instant reveal to delayed reveal.

### Additionally, some changes to the contract can *<mark style="color:orange;">only</mark>* be made *<mark style="color:orange;">**with limitations**</mark>*.&#x20;

This means while changes can be made, they will require modification outside of the Bueno app that we may not be able to assist with.&#x20;

These changes include:

* Setting new royalties percentage and royalties collection wallet.
* Changing the owner of the contract.
* Modifying token images and/or token trait metadata without completely changing already minted tokens. &#x20;

Unfortunately, we have no way of refunding gas fees associated with contract deployment. **We recommend double&#x20;**<mark style="color:red;">**(or triple!)**</mark>**&#x20;checking every aspect of your contract before you commit to deployment.**&#x20;

{% hint style="warning" %}
As user needs may differ depending on the project, this may not be a comprehensive list of changes that can't be made after deployment. **If you are unsure, please reach out to support before you deploy.**&#x20;
{% endhint %}


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