Rockstar Games has disabled the ability to replay missions in GTA Online, however, there’s a glitch you can perform to replay missions easily and farm money. Use our comprehensive GTA Online farming guide to find out what missions you can do to earn money and RP fast.
You will need to press “like” using the triangle or Y button after the mission is completed, and all members have to press the R2 button on the PS3 or RT button on the Xbox 360 repeatedly to be able to play the mission again.
Here’s a video that shows you how to do it.