Simple Auction addon, makes it easier to search, buy, and post auctions.
Buy Tab: Search, Summary for multiple items, Search history, Shopping lists, buy stacks quickly with buy button, sort by item price
Sell Tab: Post multiple auctions, Custom stack size, See item current auctions and history, Undercut settings
Tooltips: Vendor, Auction, Disenchant, Reagents, Stack prices
Scanning: Full scan AH in seconds to save auction history / prices
We are not the original author, this is modified/fixed/updated to work in Classic ERA+BCC.
If previous feature(s) are not there, then check Files tab at curseforge and try an older version, or try the official retail version (maybe they fixed it and now it works)