importing into a list - duplicate item error
I have a masterdata module with products which have an attribute of size.
I have a list of all possible sizes.
I have imported into the size list from the masterdata a module to ensure that if a different size is added, that my size list gets updated.
All good so far - however when I run the import I get an error message "Another row has already been processed with this key" - we have lots of products the same size, so fair enough.
However when I run this overnight through CloudWorks I get "An integration failed due to a server error, please verify integration is intact".
Can anyone suggest how I can extract a list of all sizes from my masterdata so I can avoid the error, then I can import this to my size list.