Hi Everyone, I am having an issue when shopper logged in the suitecommerce standard it directs it to MyAccount page. I want it to redirect to last page visited before login. Can you guys please help me out with this? Thanks in advance!

There's no setting for this. The only way to change this in SC would be to write code that first removes the standard login link and then another that appends the current page's URL path to the login link using the origin_hash parameter.

Which template should I use for this? and how to change the login link?

Which module should I extend or where I do changes and in which template?