The document discusses framework agreements under EU procurement law and how suppliers can be changed both during and after the expiration of a framework agreement period. It outlines two main types of framework agreements - those that establish all terms and those that do not. For agreements establishing all terms, changing suppliers during the period is only possible using specific models. For agreements not establishing all terms, competition can be reopened using a procedure outlined in Article 32(4). After expiration, a new tender must follow procurement rules if spending thresholds are met, and preparations like data collection should begin early.