The HTTP 302 status code indicates that the target resource has been moved temporarily and is available through a different URL. Because redirects might change in the future, it is recommended that the client continue using the current request URL as the primary URL.
When to Use 302 Redirects
You only use a 302 if you’re planning on eventually bringing the old page back. You could also use a 302 redirect if you want to test out a new page and get some consumer feedback without hurting your rankings from the original page.
When used correctly, a 302 redirect will not hurt your SEO efforts. The original page remains indexed in Google and no value (link equity) is transferred to the new URL because Google knows this is just temporary. Thus you’ll retain any rankings, traffic value, and authority that page might have.