Thanks Manudeep. Company A employer petition has validity till Jan 2020 and company B employer petition has validity till June 2021. Since I will be using company A petition at POE, I will be getting i94 date as Jan 2020. After entering US, I will be working for 2 weeks with company A and switching to Companby B. Since the i94 was granted based on company A’s petition, whether I can switch to company b without changing i94?