If you cannot import chatbot rules, it's probably for the following reasons:
1. There are unnecessary line breaks
2. The box [Overwrite the same ID] is unchecked
3. The box [Expansion] is unchecked
1.There are unnecessary line breaks
If there are line breaks in the message of the chatbot, it cannot be imported. Instead of line breaks, use the characters [¥r¥n].
NG example
OK example

2.The box [Overwrite the same ID] is unchecked
By checking the box [Overwrite the same ID], when importing, if one of chatbot ID is the same as an existing chatbot ID, it will be overwritten.
In the case of 2 same chatbot ID, if the box is unchecked, you cannot import chatbot rules.
3.The box [Extension] is unchecked
If there are rules other than [Match with visitor's message] in the imported file, you need to check the box [Extension].