In addition to the Annual Solidarity Pool, Member States, in particular when under migratory pressure or facing a significant migratory situation, as well as the Union, have at their disposal the Permanent EU Migration Support Toolbox (the ‘Toolbox’)which includes measures that can assist in responding to the needs of and alleviating pressure on the Member States and which are foreseen in the Union acquis or policy tools. In order to ensure that all relevant tools are used effectively to respond to specific migratory challenges, the Commission should have the possibility to identify the necessary measures from the Toolbox, without prejudice to the relevant Union law where applicable. Member States should endeavour to use components of the Toolbox in conjunction with the Annual Solidarity Pool. However, the use of measures in the Toolbox should not be a precondition for benefitting from solidarity measures.