The various apps of the iPIM Portal offer different options to maintain attribute values. This includes the option to maintain attributes in the “Product details” app, the option to parallely maintain attribute values on various locale levels in the “Attributes” app, the option to maintain attributes of multiple products in the “Excel” tab of the “Product data update” app as well as the option to update attribute values in bulk using the “Asynchronous bulk updates” tab which can also be found in the the “Product data update” app.