A great fundraise doesn’t make you fundable forever. Fortunes can rapidly change at a startup, so here's how to be prepared for a potentially tougher round next time:
When you close your hot and oversubscribed round, let everybody know, but with grace and humility. Cancelling meetings with no message is a bad look and people will remember when they search their email, next time.
Your existing investors are the best source of additional capital in future. Even if it was easy to get them on board, it's always worth having good communication, so they're more willing to help in future, if needed.
Keep all those investors who couldn't get in on a monthly or quarterly mailing list, as you may want them as an investor in the next round and the good news will keep them interested.
Best of luck out there.
