How do I include shipping costs if I don't know how many identical items will be ordered?

[wanieta]

I will be offering for sale 100 identical items.   How can I list shipping if I don't know if someone will buy 1, 10 or all 100?

[stuff4divas]

you set it up when the listing is created, that is where shipping options are given, ie, calculated, flat rate, combined shipping, etc

[mtgraves7984]

I would think that if you're listing in a quantity of '1' per listing, you'd add s&h for 1 item. You can always send an invoice (to a buyer of multiples), or send a partial refund after the sale (remember that you don't get FVFs back on partial refunds) of multiples. Maybe another idea will come along. Good luck.

[fern*wood]

Since I have no idea the size/weight of your item, I will offer what I do for mine.   I offer multiples once in awhile and pretty much they are always rather small and light weight.  So, I set a flat rate for one with so much for each additional one.