Hi @STARBCAFE, and welcome to the Seller Community! We're happy that you joined us! As for your question, while I don't have an exact number for you - this is definitely something you shouldn't be worried about. Offline Mode transactions take up a very minimal amount of space. Whether it's dozens, hundreds, or even thousands - you should be just fine as long as you upload them within 72 hours. Learn more about processing payments in Offline Mode.
PS) If my answer solved your problem, would you mind marking it as "Best Answer"? That'll help the rest of the community find what they're looking for. If not, just write back, and I'll continue to help. Thanks!
Sean
he/him/his
Product Manager | Square, Inc.
