提案 and 助言: proposals and advice
Distinguish accepting a proposal from offering it, and following advice from receiving it.
Putting forward a plan
提案, read ていあん, means a proposal offered for consideration. 新しい方法を提案しました。 means proposing a new method.
その提案はまだ検討中です。 says that the proposal is still under consideration. Do not translate it as already accepted or rejected.
Offering helpful guidance
助言, read じょげん, means advice intended to help a judgment or action. 先生に助言を求めました。 means asking a teacher for advice.
助言を受けました。 means receiving advice. It does not automatically establish acting on that advice.
Acceptance and action
提案は採用されましたが、実施は来月です。 says that the proposal was adopted, but implementation is next month. Separate approval from implementation.
友人の助言を参考にして、自分で決めました。 says that someone considered a friend's advice and made their own decision. Do not assign the final decision to the friend.
Does 助言を受けました establish that the advice was followed?
Show the answer and why
Not necessarily. Receiving advice and following it are separate matters.