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title: Message detail for PLMC14
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---

Example Message
---------------

    No block supplied to synchronize on cache 'my_cache'

Additional Information
----------------------

When using the Cache to synchronize your own code across agents or other plugins you have to supply a block to synchronise.

Correct usage would be:

    Cache.setup(:customer, 600)
    Cache(:customer).synchronize do
       # update customer record
    end

This error is raise when the logic to update the customer record is not in a block as in the example