On this page, you will find more information about the most common causes and most relevant solutions for the MercadoLibre error '400 - The text has character/s that is/are not supported'. Do you need help straight away? Visit our support page.
The Mercado Libre, Inc. documentation indicates that error code '400 - The text has character/s that is/are not supported' is caused by the following problem: "The message content is too long, max characters allowed are 350".
Do you think there is another cause for this error? Let others know in the comments.