When obsolescence monitoring has made it possible to detect a component's imminent disappearance, the purchase of end-of-life stock presents one possible solution. From a technical point of view, this is the easiest solution, but those handling the budget may disagree with it...
However, given that the manufacturer's support will no longer be available a few months after the components have been received, it will be therefore be necessary to check the components’ suitability for long-term storage and the quality of the parts placed in stock, in order to be as autonomous as possible until the end of the programme.