There are no limits to the number of characters or amount of text that can be used for a field’s label. However, it is best to try to keep the label as short as possible without causing the person collecting the data to not know what they are supposed to fill out. Having long field labels can increase data collection time.
Values/Data Entered Into Fields
Like, field labels, there is no limit on the amount of text or characters that can be entered into a field. When entering a value into a field in your app, there are sometimes the need to enter in quite a bit more text. Feel free to enter as much as you need, but try to keep the length reasonable (a few paragraphs). If you find that you need to enter in more text, I would recommend examining what is being entered and see if this can be broken up into more specific fields.