Here is a basic hierarchical import that can be used to import custom
variables to use this you have to have auto-generate product references
switched off and you need to use the update option when you import and
only include details for existing products - if you need to create new
products you would have to give a product description as well.
This is the content of the file, note that the header lines should all
be on a single line, so watch for the wraparound on the custom
property line :
Header:Product,Product reference
Header:CustomProperty,Custom Property Name,Value,Use as CUSTOMVAR,Is
Searchable,Is File Name,Use File Content
Header:ValidCustomProperty,Name,Type
ValidCustomProperty,"BRAND",1
ValidCustomProperty,"MANUFACTURER",1
Product,"20"
CustomProperty,MANUFACTURER,"Manufacturer for product 20",1,0,0,0
CustomProperty,BRAND,"Brand for ths product 20",1,0,0,0
Product,"11"
CustomProperty,MANUFACTURER,"Manufacturer for product 11",1,0,0,0
CustomProperty,BRAND,"Brand for product 11",1,0,0,0