When it comes to communicating important information, the phrase "advise of" can be a useful one. However, it's always good to have a variety of synonyms to choose from, depending on the tone and context of the message you're trying to convey. Some alternatives to "advise of" include "inform of," "notify of," "apprise of," "convey," and "report." Each of these phrases has its own connotations and nuances, so it's important to choose the one that best suits your needs. By expanding your vocabulary and experimenting with different word choices, you can ensure that your message is clear, concise, and effective.