I have a multiple-entry business visa. I have entered once previously, and next month will be my second visit. Will I be required to show a new invitation letter and employer cover letter, the originals that I used to apply for the visa? Or is simply the visa in the passport enough?
I can't remember if I had to show the original documents on my first visit. My employer sponsor is the same, but the company that I will be visiting is different from the original invitation I received and used to apply for the visa.