"Important details" refers to specific pieces of information or facts that hold significance or have a significant impact on a situation, decision, or understanding. Full definition
You choose the perfect screen name, fill out the most important details about yourself, and have your friends help you pick out your best pictures. (datingadvice.com)
Make note of important details such as the time and date of the incident that led to the loss. (trustedchoice.com)
You choose the perfect screen name, fill out the most important details about yourself Free online dating. (myintimcity.com)