Abstract
The experience gained in the field of public procurement leads me to the statement that the activity of amending the public procurement contract / framework agreement is a challenging activity for the contracting authority. Maybe not from the perspective of elaborating the documents necessary to operate the change or changes that may be required during the development of the public procurement contract / framework agreement, but rather from the perspective of the solutions offered by the law, solutions that cover only certain areas. Starting from the normative acts in force, this paper aims to identify the situations and the way in which the contracting authority can modify the public procurement contract / framework agreement, the documents to be elaborated and the effects that the modifications might entail. In order to increase transparency, predictability and coherence in relation to the operation of contractual changes, contracting authorities should carry out analyses after each public procurement process as well as of the various practical situations encountered during the execution of contracts.