Is your communication with suppliers and clients proper?
An excellent base to connect and continue improving your business is through the appropriate use of written communication etiquette. To achieve this, the same email etiquette rules apply to all types of written communication.
Even if you consider your contact more a friend than a client, for example, writing professionally and with the proper grammar, punctuation, syntax, format, etc. will not only maintain that relationship, but likely improve it.
Whether your channel is email, TXT messaging, WhatsApp (for business, of course), or regular press releases, marketing campaigns, and the likes; write well.
Your business will improve.