We have Merge replication configured between 1 publisher and 12 subscribers all having SQL

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Editorial Team

Asked: June 1, 20262026-06-01T19:14:01+00:00 2026-06-01T19:14:01+00:00

We have Merge replication configured between 1 publisher and 12 subscribers all having SQL

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We have Merge replication configured between 1 publisher and 12 subscribers all having SQL server 2008 R2

On one of the subscription I am getting below error

Error messages:
The merge process could not replicate one or more UPDATE statements to the 'Subscriber' because a stored procedure failed to execute. Troubleshoot by using SQL Profiler. (Source: MSSQL_REPL, Error number: MSSQL_REPL-2147200989)
Get help: http://help/MSSQL_REPL-2147200989
Cannot insert duplicate key row in object 'dbo.MSmerge_contents' with unique index 'nc2MSmerge_contents'. (Source: MSSQLServer, Error number: 2601)
Get help: http://help/2601

In the error its mentioned that ” Cannot insert duplicate key row in object 'dbo.MSmerge_contents' with unique index 'nc2MSmerge_contents'” I checked nc2MSmerge_contents index script but there is no unique constraint specified for the index

CREATE NONCLUSTERED INDEX [nc2MSmerge_contents] ON [dbo].[MSmerge_contents] 
(
    [generation] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, SORT_IN_TEMPDB = OFF, IGNORE_DUP_KEY = OFF, DROP_EXISTING = OFF, ONLINE = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
GO

Below is the table structure

enter image description here