hi,
1. ensure that you have the correct budget profile in the project
2. how do you release (cj32), do you input specific WBS element or the entire project? it should be the entire project so that AVAC can be activated properly.
3. also, check if you have a user status in the project which prevents the AVAC.
i agree that the AVAC should get activated when you use the CJ32 transaction.
regards,