my understanding is that you can re-position integrated extract with an SCN that is greater than the "outbound server's first SCN", however in my test, I couldn't do so as demonstrated below, Any comments?
GGSCI 27> info yz detail
EXTRACT YZ Last Started 2018-02-21 14:21 Status STOPPED
Checkpoint Lag 00:00:04 (updated 00:01:12 ago)
Log Read Checkpoint Oracle Integrated Redo Logs
2018-02-21 14:42:43
SCN 371.299753222 (1593732620038)
Target Extract Trails:
Trail Name Seqno RBA Max MB Trail Type
./dirdat/dirrep/YZ 3 4904 100 EXTTRAIL
Integrated Extract outbound server first scn: 371.291164357 (1593724031173)
Integrated Extract outbound server filtering start scn: 371.291164357 (1593724031173)
GGSCI 28> alter extract yz scn 1593728150149
ERROR: Extract YZ can not be positioned to SCN 1593728150149.
Here i use a SCN after the "first SCN" and got the error message.
If I use a SCN after the "SCN that when the extract stopped SCN 371.299753222 (1593732620038)" I am suceessful
GGSCI > alter extract yz scn 1593737487500
EXTRACT altered.