ORA-02291 - ORA-02063 on merge with dml error logging through DB link

Hello all,
I have 2 DB's and I would like to merge records from A into B with dml error logging through a db link.
Exemple:
merge into [email protected]
using (select ... from A where...)
when matched then
when not matched then
log errors into err$_A reject limit unlimited;
When I use this, and exception is thrown:
ORA-02291: integrity constraint (B.constraint_name) violated - parent key not found
ORA-02063: preceding line from dblink
I've got no idea of what causes this.
Could anyone please help me ?
Thanks !
Regards,
TDE.

Hello damorgan,
Thanks for your answer.
I've well understood that its was a foreign key violation, and I guess that's an error in the source: wee make only logical deletes, and I'm quite sure the problem is there.
Anyway, I really would understand why dml error logging doesn't work in this case.
I'll investigate and keep you informed.
Regards.

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