You can select the items you want to boost, you can boost as many as you like. The total budget is split between all items. So if your budget is $10 and you have 5 items boosted, each item gets a $2 budget
Start and End dates:
When your ad will start and end.
Total amount to spend on the campaign (The Min ad budget is 0.01 ETH)
Mintable uses CPC (cost per click) so you can set that here.
Automatic - then every day the CPC will be automatically adjusted so that your ads remain within the top ads shown. (suggested)
Manual - if you select manual then your price is set by you. If the average price for all boosted items is 0.50 and you set yours at 0.10, your ad will probably never been seen as others will be shown first. (not suggested)
Submit your items!
You will be asked to pay for your promotion via your wallet - using ETH. After you submit the transaction, your ads will be created and automatically be shown.
If you have ad credits you won't need to make any payment, it will automatically deduct from your ad credits.
Cancel/edit boosted items
You can cancel your ads at any time. You can also edit the details of each ad.
You can cancel or edit your ad.
If you cancel your ads, your remaining balance will be credited to your account and you can use them for other ads without needing to pay.
Due to the nature of cryptocurrency, ad payments are non-refundable. If you cancel an ad, your remaining balance is credited to your account so you don't lose any money, but you cannot refund your blockchain transaction.