If you weren’t able to pledge to a project before it reached its deadline, or you’ve come across an interesting project that has already ended, it’s no longer possible to pledge to the project through Kickstarter.
To see if there’s a way you can support the project outside of Kickstarter we recommend reaching out to the creator directly. You can find the steps for contacting a project creator in this help center article.
I pledged via a link on an ended project page but it isn’t showing in my Backed projects?
To be recognized as a backer of a project on Kickstarter, you must pledge when a project is still live, either by clicking the green “Back this project” button or by selecting a reward tier.
If you followed a link on the project page to a page outside of Kickstarter, and pledged on a separate site, there is no record of your transaction with Kickstarter. Therefore, it's not possible to be reflected as a backer and you will be unable to comment or view backer-only updates.
In instances where you pledged via a link on a separate site you should reach out to the project creator directly with any specific questions about your contribution.