what is a form validation error on a csv import

AI generated answer (using internal Slack threads):

A form validation error on a CSV import in NetSuite typically occurs when the data being imported does not meet the validation rules set on the form fields in NetSuite. This could be due to a variety of reasons such as missing mandatory fields, invalid data types, or incorrect reference keys. For instance, in the first conversation, the user was trying to update sales orders via a CSV import but encountered an error due to the 'Bill To Select' field. Even though the field was not missing, it was set to 'Custom', which was not accepted by the validation rules. The suggested solution was to either make the 'Bill To Select' field non-mandatory on the custom form or make the 'Bill To' field mandatory instead. In the second conversation, the user was trying to import contacts and kept getting an error "Invalid customform reference key 33". This error was likely due to the form not being correctly selected in the advanced options of the CSV import settings. In the third conversation, the user was looking for a way to check for invalid characters in a CSV file before importing into NetSuite. The suggested solution was to use a User Event script on the record type being added, and throw an error if invalid characters are detected. ****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ******