What if I exceed my day trading buying power?

Excuse me, I have a question about day trading buying power. If, by any chance, I find myself exceeding my designated limit, what would be the consequences? Would there be any penalties imposed? Is there a specific protocol in place to address such situations? Additionally, would I be required to take any immediate actions to rectify the situation and ensure that I'm compliant with the rules and regulations? It's crucial for me to understand the potential implications and how to handle them effectively.