The variations under “Validity Period” 01.Jan.16.-31.Mar.16 are all good, more or less, then for 2nd period: 01.Apr.16.-31.Oct.16. – exceeds the limit of variations and comes out with:
“Sorry, this product is unavailable. Please choose a different combination.”
There are in total about 62 variations computed here,
Replicate: Sorry, I have no idea how replicate.
Do you know where to set ‘Number of variations’?