B-rank (Earth-2356)

B-rank is one of the six types of classification in the galaxy. It is preceded by C-rank and followed by A-rank. It was typically used when classifying Force techniques intended for Jedi of Jedi Master, High Master or Jedi Knight level. B-rank techniques are typically useful and can be learned relatively easily with enough time, such as the Shadow Clone Technique.

There are also B-rank missions, as mostly known by bounty hunters. Within the Jedi Order, these missions were usually assigned to Jedi Masters, Jedi High Masters, and Jedi Knights. Assignments can involve spying or assassinations, and bounty hunters are expected to go up against enemy bounty hunters during the course of the mission. B-rank missions pay between 80,000 and 200,000 credits.

Source

 * https://naruto.fandom.com/wiki/B-rank