I've dealt with yahoo stores for a quite a while...for functionality, I think they are tops bar none. The backend support is phenomenal. The templates and rigidity of design has greatly improved over time as well.
I spoke with a very well informed yahoo store expert who literally "wrote the book" on yahoo stores...and he said there was basically no way that he was aware of to do this. I've asked everywhere I could think of to this point to no avail.
This should really not be a difficult feature request right? Page A 301 redirects to page B...write it to the .htaccess or whatever equivalent there is.
If I have missed something, and someone knows of a way to do this, please let me know. If not please yahoo give us the ability to at least do page level 301 redirects
a 301 page redirect gives you the ability to move traffic and links to a new page. So let's say you have a product page that is very popular and gets a lot of traffic and somehow got like 100 links pointing to it from other sites. Now, the product is discontinued, so what you want to do is 301 redirect that page to either a similar product on your site or the home page or wherever you think is a good place. That way you don't take that page down and lose the traffic or the link juice that page gave you.
Right now with Yahoo basically your stuck to keeping the same url but putting whatever the new content is on that old page. That's the only way i know of to keep the link juice.
A 301 domain redirect is the same principal but allows you to redirect one domain to another.