# Automatic Fetch Enabled

To enable automatic fetch, set `prefetch` to a positive integer. Automatic fetch ensures that if a message is available, then it is waiting when client code is ready to accept one. It can improve performance by decreasing or eliminating client idle time while the server transfers a message.

However, when a queue consumer prefetches a group of messages, the server does not deliver them to other queue consumers (unless the first queue consumer’s connection to the server is broken).

Note: A positive `prefetch` must be configured in order to use receiveNoWait function calls.
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