Problem with our deliveries : ORA-210000 Oracle error: ORA-01555: snapshot too old: rollback segment number with name "" too small ORA-22924: snapshot too old
Hello everyone,
I hope you can help us with the recurrent problem we have been facing for two weeks now.
5 of our workflows can't complete the analysis of the recurrent deliveries and we have to restart them each time after the error below, please note that the deliveries are sent after the restart (sometimes we need to restart the workflows 2 or 3 times for the deliveries to be sent)

Please note that the volume of the target is low (from 4 to 3000 emails each day) and that the "tablespace undo" has already been modified to 300mb and everything seems ok database-wise.
Thank you in advance