We have our Backendless database connected to a web-app (out of Backendless).
Users have to fill a form and can multi-select countries (more than 190 options).
When it comes to save data, sometimes there is an error message that comes up.
I guess there is a limit in terms of character or options that can be save in one single cell.
Can your please provide more details? How do you save the data?
If you try to save it into single column, I would suggest to review the structure of your database. E.g. you can create the table Country with all available options. Then add One to many relationship column named countries inside Users table that will reference the countries user choose.