There are many ways to make an offer to one of your merchants. For example you can use the action button on "Product streams" to go to the offer wizard to create an offer.
Another possibility is to use the "Create offer" button at the "Dashboard->Offers" category.
In the first step you have to choose the merchant you want to make an offer to.
Choose the product streams which should be included.
The next step will show the price calculation. "Merchant margin" specify the proposed margin for the offer.
Optionally, you can determine how long the offer is valid.
In the last step you can review the offer again. You have to confirm that Shopware Connect is not a contracting party in sales between shops to continue.