When writing to customers, it’s a good idea to end your emails with “hope this helps.” It’s common for customer service representatives to begin each email with this phrase, but this expression has different connotations depending on who you’re talking to and what you’re writing. It is important to get to know your audience before you send an email. Here are some guidelines for using “hope that helps”
Use the subjunctive form to avoid being flagged for rudeness. This is a formal way to ask for assistance if the answer you have been given does not solve your problem. It’s more formal than using “Hope this helps” and is usually more polite. You can also use this form when you’re not certain how much help the answer will provide. The present indicative is preferred by most people.