You can filter the products for update by the following conditions:
Categories (multiple selection is possible)
Manufacturers (multiple selection is possible)
Filters (multiple selection is possible)
SKU, UPC, EAN, JAN, ISBN, MPN, Location
Price (base price)
Discount: Customer Group, Price, Date Start, Date End
Special: Customer Group, Price, Date Start, Date End
Reward Points: Points (Number of points needed to buy a product), Customer Group, Reward points
Minimum Quantity (Force a minimum ordered amount)
Out Of Stock Status
Date Added, Date Modified
Attribute, Attribute Value
Option, Option Value
Products for update features:
Filtered products will be listed with pagination, so, it works with an infinite number of products.
You can set how many products shown per page (for slower servers or large databases, it is recommended a smaller number of products per page).
You can deselect or reselect certain products from list.
Admin LIVE DEMO
Go to Extensions > Extensions > Choose: Modules > Edit: MASS products update: ...
A instructions.txt file is included in downloaded archive.