2 ACCEPTED SOLUTIONS
Accepted Solutions
eBay's favourite past time seems to be making things confusing and/or difficult. ๐
Ok, so when you list an item and enter in the postage costs, there's an extra field where you can input a cost for each additional item - that discount is listing specific, so will only ever apply to that item alone (just to confuse things even more, if you have any variation listings and someone buys two of the same variation, the "each additional item" discount will apply, but if they buy two different variations, the "each additional item" discount won't apply, as eBay treats them as if they were two separate listings 
)
What you need to do is create a global postage rule, and apply that to all listings that you want to have the discount in place.
The easiest way to access this option is to go to one of your listings, on the top lefthand side will be a short list of links, including one that says "create postage discounts"
Once you click that, you will arrive at a screen that shows you the various options for creating postage discounts, and any profiles that you have already set up (if any) - on mine, I use flat rate postage, so have created flat rate postage discounts (on a side not, if you use calculated postage, the process should be the same, and just re: promotional postage discounts, they're 'special' in the sense that they are used to create rules like buy X items and the buyer gets free post - promotional postage rules override any other postage discounts in place, if the conditions are met, so you won't need that if you just want to do flat rate).
This is what my screen looks like for postage discounts:
You can see I have two profiles created under 'Flat postage', the clothing one is old and no longer in use, the jewellery one is in use, and you can see that it's showing $0 is charged for additional items.
To create a profile, you'll need to click 'Create' (or 'Edit') on the type of rule you want to create, so in this case I clicked 'Edit' on my flat rate discounts and get this screen:
You can see that on the jewellery discounts profile, I've set it to free postage per additional item, and that I can add other profiles if I want different discounts to apply to different items. Once you enter in the additional cost per item (or tick free post) and name the profile, you click next and the profile should be created / saved.
Then you have to add it to your listings. To add or check listings manually, you need to revise it and scroll down to the postage section, where there is a tickbox for the postage discount profile (down the bottom, where it says 'Apply my flat postage rule with profile name...' and then a drowpdown menu where I can select the profile I want to apply) :
I checked to see if you can apply the same rule to international postage options, and you can, so that won't be a problem.
Also, you should be able to add the profile to every listing you have if you edit them in bulk via Selling Manager (if you need assistance with that, I can walk you through that as well, but you might have to give me 'til later tonight as I won't be at the computer for a while, or someone else may be able to advise ๐ )
That was it!
Created the promotional rule, applied to all lsitings, now same flat fee for all. 
Thank you for taking the time to post such a comprehensive answer.
eBay's favourite past time seems to be making things confusing and/or difficult. ๐
Ok, so when you list an item and enter in the postage costs, there's an extra field where you can input a cost for each additional item - that discount is listing specific, so will only ever apply to that item alone (just to confuse things even more, if you have any variation listings and someone buys two of the same variation, the "each additional item" discount will apply, but if they buy two different variations, the "each additional item" discount won't apply, as eBay treats them as if they were two separate listings )
What you need to do is create a global postage rule, and apply that to all listings that you want to have the discount in place.
The easiest way to access this option is to go to one of your listings, on the top lefthand side will be a short list of links, including one that says "create postage discounts"
Once you click that, you will arrive at a screen that shows you the various options for creating postage discounts, and any profiles that you have already set up (if any) - on mine, I use flat rate postage, so have created flat rate postage discounts (on a side not, if you use calculated postage, the process should be the same, and just re: promotional postage discounts, they're 'special' in the sense that they are used to create rules like buy X items and the buyer gets free post - promotional postage rules override any other postage discounts in place, if the conditions are met, so you won't need that if you just want to do flat rate).
This is what my screen looks like for postage discounts:
You can see I have two profiles created under 'Flat postage', the clothing one is old and no longer in use, the jewellery one is in use, and you can see that it's showing $0 is charged for additional items.
To create a profile, you'll need to click 'Create' (or 'Edit') on the type of rule you want to create, so in this case I clicked 'Edit' on my flat rate discounts and get this screen:
You can see that on the jewellery discounts profile, I've set it to free postage per additional item, and that I can add other profiles if I want different discounts to apply to different items. Once you enter in the additional cost per item (or tick free post) and name the profile, you click next and the profile should be created / saved.
Then you have to add it to your listings. To add or check listings manually, you need to revise it and scroll down to the postage section, where there is a tickbox for the postage discount profile (down the bottom, where it says 'Apply my flat postage rule with profile name...' and then a drowpdown menu where I can select the profile I want to apply) :
I checked to see if you can apply the same rule to international postage options, and you can, so that won't be a problem.
Also, you should be able to add the profile to every listing you have if you edit them in bulk via Selling Manager (if you need assistance with that, I can walk you through that as well, but you might have to give me 'til later tonight as I won't be at the computer for a while, or someone else may be able to advise ๐ )
That was it!
Created the promotional rule, applied to all lsitings, now same flat fee for all.
Thank you for taking the time to post such a comprehensive answer.
