The first reorder is the real test
Brands celebrate the opening order and then lose the account quietly. A store buys a case of each line, puts it on the shelf, and either sells through or does not. If nobody calls to ask which lines moved, the reorder never comes and the brand concludes that wholesale does not work. A reorder expectation on the account, set from the size of the opening order, turns that into a scheduled conversation about sell-through rather than a hopeful email six weeks later.
Sell-through beats discounting
When a line is not moving in a store, the instinct is to offer a discount. Usually the problem is placement, staff knowledge or a shelf position nobody chose deliberately. A representative who can see what the store bought, what they asked about at the time and what has happened since is in a position to fix the actual cause. That conversation costs nothing and keeps the margin, which matters because wholesale margin is already thinner than direct.
Price consistency between your own site and their shelf
Nothing ends a stockist relationship faster than a site promotion that undercuts the store carrying the product. Recording promotional periods and the terms agreed with each account gives the person planning a campaign visibility of who it will annoy, and gives the person taking the angry call something better than an apology. Deciding this deliberately is part of running two channels rather than one channel with an accident attached.