To take extra precautions, you need to understand the necessary elements of a contract, what makes a contract invalid or questionable, how to terminate an agreement with the other party, and how to avoid unnecessary contracts by implementing a robust verification process. The acceptance of the offer made is an agreement of conformity with the contractual conditions provided by the supplier. The acceptance of an offer must be made in the manner defined in the contract or, if not specified, in a manner deemed appropriate for that situation. If an offer is accepted, it is accepted in its entirety. If this is not the case, the tenderer may submit to the tenderer a counter-tender which is only an amended version of the initial contract. The process then begins with this new offer from scratch and the roles are reversed.