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What does "A Request to establish a connection with the transaction manager was denied" mean

Posted on 2014-01-23
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Last Modified: 2014-02-01
Hello I have the above error when trying to ApplyUpdates() to a ClientDataSet in Delphi XE5 using a Datasnap server client connected to a MS SQL Server database.  Can anyone explain what this means and how I might fix it
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Question by:cliveMM
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Expert Comment

by:Geert Gruwez
ID: 39806217
is there a local service on the windows pc ?
Distributed Transaction Coordinater

Is it running ? or enabled to run ?

Having it running, or restarting it may solve the problem
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Author Comment

by:cliveMM
ID: 39810229
Hi Geert, thank you for responding.  I don't think its anything to do with the local pc as the App is running on an Android tablet and the message occurs on the datasnap server.
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Accepted Solution

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cliveMM earned 0 total points
ID: 39813044
I have found the cause now, I changed the primary key field on the table from a BigInt to Int and the problem disappeared.
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Author Closing Comment

by:cliveMM
ID: 39826107
Self Answered and put on line to assist oters
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