Definition of conference and training: This question is really hard to say. My idea is: if there is a topic, mainly for discussion or main people to watch, it can be called a meeting; But generally speaking, the main purpose of training is not to discuss topics, but to improve some skills of participants. There may be discussions and sharing between them, but the ultimate goal is to improve their skills. So you need to define it yourself!

But as for how to reimburse the expenses, I think you have to look at your company's finances and see how they charge. You have to do whatever they say, or you won't be reimbursed. The last sentence!