ORA-42652
Error during data validation: Invalid or unsupported field name 'string'.
Cause
Invalid or unsupported field name found in the document.
Action
Avoid using special characters and numbers in document field names, as they can make them harder to read and distinguish. Characters such as spaces, colons, and hyphens are not supported in field names. Additionally, field names must start with an alphabet. Instead, it is recommended to use CamelCase or PascalCase, which can make the field names more distinguishable and easier to read. For example, "firstName", "LastName", "name1" and "contact#" are all valid names. And, "first Name", "Last:Name", "name-1, "-name" and "8percent" are all invalid names.