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Working on a service request our customer reported the following error message: Sync failed with state: SyncSucceededWithWarnings, Syncgroup: XXX - Error #1: SqlException ID: XXXX-NNN-ZZZZ-YYYY-FFFFFFFF, Error Code: -2146232060 - SqlError Number:547, Message: The INSERT statement conflicted with the FOREIGN KEY constraint "FK_Table1". The conflict occurred in database "DB1", table "dbo.Table1", column 'Id'. SqlError Number:3621, Message: SQL error with code 3621
Decoding the Error Message:
The warning state signifies that while synchronization was successfully executed, some errors, like the SqlException indicated above, occurred during the process.
Navigating Through the Errors:
- Foreign Key Constraint Error Analysis:
The error message elucidates a failed attempt to insert a record into a table due to a Foreign Key Constraint Error. The conflict arises when the inserted record's foreign key doesn't align with any existing primary keys in the referenced table.
- Error Resolution Steps:
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Identify and Analyze: Utilize tools like SSDT / SSMS to compare the databases and pinpoint the conflicting records causing the constraint error.
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Data Correction: Engage in a meticulous process of amending the data by adding the absent records in the referenced table, or adjusting the foreign key values in the records to be inserted, ensuring they correspond to existing primary keys in the referenced table.
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Sync Group Recreation: In moments of low traffic or scheduled downtime, recreate the sync group to implement the rectified records seamlessly.
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Reinitiate Synchronization: After addressing the conflicting records, reinitiate the synchronization process, which should now proceed without constraints or warnings.