Same trap here. Our home schedule didn't match theirs, so the school flagged 'missing' vaccines that our kids had actually had under different names/timings. Get an official, itemised record from your doctor before you leave — a summary letter isn't enough.
The school asked for a vaccination schedule that doesn't map neatly onto the one from our home country, plus translated records we didn't have ready. It held up enrolment by weeks. What paperwork did you wish you'd gathered and translated before you arrived, rather than scrambling for it after?