Cannot call Update method in Child pipeline to update Dynamic Entity

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  Hi all,
  
  I have a situation and get stuck in there.
  
  When user assign an account to another user, I need to update all Description field of letters which belong to this account with new value. I create a plug-in and register it: child pipeline, pre-stage mode, Update message, primary entity is letter. In Plug-in code, I get entity in InputParameter of IPluginContext and cast to DynamicEntity. And then update Description field with new value. However, new value not effect after that. I try to create a Crmservice and call Update method in that to DynamicEntity above. Systeam throw Exception -  Server was unable to process request. <description>Generic SQL error.</description>
  
  Please help me out in this situation.
  
  Thank very much.
  Bao Doan
  

  Wednesday, July 22, 2009 10:02 AM