Official answer available
Preview the opening of the answer, then unlock the full walkthrough.
My first move would be to create one shared picture of the problem. When several teams are affected, they often experience the same supplier issue in different ways, and the conversation becomes noisy fast. I want to know what the common root issue is, what the immediate impact is, and which decisions actually belong with procurement versus other functions.
Then I would coordinate the response...
easy
easy
easy
easy
easy
easy