The buying party who initiates an interaction with one or more suppliers (through actions such as an invitation to tender or a request for proposal, as a few examples) is considered to be inviting those suppliers to participate in what’s referred to as contract “A”. Suppliers that submit a response to this invitation are considered to have entered into and accepted contract “A”, and at the time of this acceptance simultaneously create an invitation to the buying party to enter into what’s referred to as contract “B”. The creation of multiple contract “A” agreements is possible if multiple suppliers respond to the offer to do so. On Tradogram, contract “A” can be considered any received supplier response to an RFX (request for X, where X is the purpose of the document) that meets the qualifications outlined in the request/invitation document.