L2 Import data into DAT03 - Issues with timescale & SKU list



Been stuck in a loop for a while on this now - I can see a few other users have been caught out as well - so perhaps needs to be made more explicit in the guidance. 


I am having two problems. 

1. I do not understand how to map the timescales together

2. The SKUs lists between the two models are different - Did I do something wrong in the datahub?