You set up a 
Requester and 
Crafting Emitter, but nothing is being crafted. Work through these checks in order — most failures come down to one of a few things.
Check the Network and Connections
First, confirm both the Requester and the Crafting Emitter are actually part of the same Refined Storage network. A block that looks placed can still be unconnected if a cable is missing or a face is not configured to connect. Open each block's interface and verify it can see your storage.
Check Patterns and Ingredients
The network can only craft what it has patterns for. If the tracked item has no pattern in a Crafter, the request has nothing to fulfill it. Also check that the base ingredients for that pattern are actually available — a valid pattern with missing inputs will stall rather than complete.
Check the Order Logic
Remember the Requester only fires when stock falls below your target. If you already have enough of the item, it will correctly do nothing. Lower your target or consume some of the item to test. Finally, confirm the Crafting Emitter is enabled and pointed at the right order; a disabled or misconfigured Emitter will silently drop the request.