An internal error has occurred in the program xla_ae_lines_pkg.AccountingReversal. ORA-01555: snapshot too old: rollback segment number 7 with name "$TEMPUNDOSEG" too small.

https://aporaclepayables.blogspot.com/2017/11/error-internal-error-has-occurred-in.html

Error

An internal error has occurred in the program xla_ae_lines_pkg.AccountingReversal. 

ORA-01555: snapshot too old: rollback segment number 7 with name "$TEMPUNDOSEG" too 

small.

An internal error occurred.  Please inform your system administrator or support 

representative that:

An internal error has occurred in the program xla_ae_lines_pkg.AccountingReversal. 

ORA-01555: snapshot too old: rollback segment number 7 with name "$TE

For my Case

1: Data file 7 gb to 11gb Increased

alter tablespace APPS_UNDOTS1  add datafile '/data/CLIENT/PROD/apps_st/data/undo04.dbf' size 4096m

2: undo retention 900 sec to 1800 sec increased

alter system set undo retention = 1800 scope=both