Infor LN error 205: how to diagnose and fix it
infor ln error 205
Also searched as
- baan error 205
- infor ln error 205 duplicate
- infor ln error 205 bshell log
Short answer
Error 205 is a numeric database-layer error. In Baan and LN lineage it is commonly seen on write operations that conflict with an existing record, such as a duplicate key, but you should confirm for your version from the message text and logs. Identify the table and operation, check the key and any custom script or conversion that wrote the record, then correct the data or the logic.
Applies to: Infor LN 10.x and Baan 5.x. Confirm numeric meaning in your version's error list.
Diagnose and fix
- 1Record the full message: table, operation, user, session and time.
- 2Open the bshell log for that time on the application server and note the lines around the error.
- 3Check the database driver log for the underlying native error to see whether it is a key, constraint or lock condition.
- 4Display the table's index definition and compare against the data you tried to write.
- 5Query the existing record with the same key. If it exists, find who or what created it (session, conversion, integration).
- 6Fix the cause: correct the input, remove a true duplicate through a supported function, or fix the script that generates the key.
- 7Retest with one record, then rerun the original job.
Typical triggers
Common triggers are a conversion or import run twice, a custom number series generating repeats, concurrent users creating the same key, and an integration replaying a message. After a restore or copy of company data, sequence tables sometimes fall behind the data, so new records collide with existing ones.
Look for a pattern. If it only happens in one session, suspect that session's script. If it happens in many, suspect sequence or data issues.
Which logs to read
The bshell log for the user's process shows the session stack and the failing call. The database driver log shows the native error. Together they identify the table, the index and the operation without guessing.
Increase logging temporarily only if the standard logs are not enough, and remove it after.
Safe correction
Never delete duplicates with direct SQL in production without a backup and approval. Prefer the standard delete or merge function, which maintains dependent tables. If a sequence is wrong, correct it using the supported sequence maintenance session and log the change.
Add a check to the conversion or integration to make it idempotent, so reruns do not repeat the problem.
Try it here, free
Infor LN and Baan Integration Interface Specification Template
Fill-in functional and technical specification for an LN or Baan interface, including data flow, error handling and volumes.
Common pitfalls
- !Assuming 205 means duplicate on every version without checking.
- !Deleting rows with SQL.
- !Rerunning an import before understanding why it failed.
- !Ignoring sequence tables after a restore.
- !Not keeping the log from the first occurrence.
How an ERP-grounded AI assistant handles this
A private assistant indexing your bshell logs and incident notes can match a new 205 to earlier ones, and show the table, key and likely creator of the clashing record. Netray runs this on your own infrastructure, read-only by default.
Frequently asked questions
What does Infor LN error 205 mean?
It is a database-layer numeric error that, in Baan lineage, is commonly associated with record conflicts such as duplicates. Verify against your version's list and the accompanying text before acting.
Which log should I check first?
The bshell log at the time of failure, then the database driver log for the native error.
Can I fix it by restarting?
Rarely. Restart clears transient states but not duplicate data or wrong sequences.
How do I stop it recurring?
Make conversions and integrations idempotent and check sequences after any restore.
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