# dhtmlxdataprocessor:api_method_dataprocessor_afterupdatecallback [DHX documentation]

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### afterUpdateCallback(sid, tid, action, btag)

Required library edition:
Required library file: dhtmlxdataprocessor.js

used in combination with setOnBeforeUpdateHandler to create custom client-server transport system

- sid - id of item before update
- tid - id of item after up0ate
- action - action name
- btag - reference to the xml node