Error: CMN.ATO.GEN.500055 - Declarer Contact Name must not exceed 25 characters.

Awer: The individual's name might exceed the character limit. Consider omitting certain middle names. The system prohibits altering the "Declarer contact name"

Name of the person may be too long. You might need to remove some middle names. System does not allow for "Declarer contact name" to be changed, ie split the name via "Other given name"