Many shipping providers have strict limits of how many characters can fit on the label. If the number of characters is exceeded, they cut the line anyway, and might not see some important information, like the house number or the company name.

Based on our 10+ years of experience delivering to 100+ countries, there shouldn't be any issues with those limits, even for really long addresses or names. Shortened names can be used in the address line, for instance, for avenues, buildings, etc.