This is what i have to offer you..
An offer, it's a term that's often used in the world of e-commerce. But what is it?
An offer is a piece of information, that you send to a place that needs to know when products need to be online or offline. It's basically, what you have to offer. This offer contains sometimes different information, based on the marketplace your sending the offer to.
In most cases, the offer contains information about the stock level of the product and if the product needs to be placed online or not.
So, if the marketplace may ask you to (re-)send your offers, they mean to (re-)send your stock, delivery time and price values.