Minecraft Command Block Chain Guide

Chain command blocks follow the arrow direction and depend on their conditional and activation settings.

What to do

Work through these checks in order. Stop if a menu, command, or world state differs from the conditions described.

1. Confirm your Minecraft edition and release, then identify the world, device, or server involved.
2. Place a short two-block chain in a test world and orient the arrows toward the next block.
3. Use harmless output to confirm order before connecting a larger sequence.
4. Check the result in the game. If it differs, record the exact error or menu label and compare the official source for your version.

Edition and version differences

Command names, selectors, and permissions can differ between Java and Bedrock or change after an update. Custom server commands need their own documentation.

If the result differs

Compare the current screen or error text with the conditions above. Check the Java or Bedrock edition, permission level, and every command argument. Run a harmless test before changing a main world. Change one variable at a time so you can tell which step made a difference.