Please note, this article is for MetaMask swaps performed with the swap button within our app or extension. For all other swap inquiries, please contact the third-party swap system you used, as they will have a better understanding of their system's intricacies, nuances, and issues.
MetaMask swaps is not available on every network. If it is available on a network, the button will allow you to proceed. The team is investigating options on a path forward for additional networks. If and when that time comes, you will automatically see it reflected in the app and extension.
If you are on a network on which Swaps is available, but are unable to click the Swap button, try restarting your browser, or try a different network connection entirely. Also, sometime toggling networks (switch from one network back to the network you were using) helps.
If you do not see the Swap button on Mobile, please update the app by going to MetaMask.io and click "Download now".