New to Businessworks.
Our fiscal close is on Oct. 31. Trial balance data is limited and is only showing me Oct. 2019 to current and nothing prior.
How can I access this information?
1. open G/L -> Utilities -> status - this will show how many years the data files keep data , we keep 3 years of data and 5 years summery data
2. open each module's status - and see the years the other modules keep data, Yes they can be different. I keep mine at 36 months
3. To see before Oct 2019, you will need to restore a backup,
be care not to erase your current company, it is HIGHLY recommended to restore to a DIFFERENT company name
I use a system of Z [company initals] XXXX where XXXX is the newest fiscal year in the backup data file.
example Company Name is IBM so the restore company name would be ZIBM2022 or ZIBM2210 Z [company initals] XX YY where xx is year and YY is month
I know in BW 2020 and newer you can make the restore names up to 12 characters, we have one that long 
4. I hope your company is following good practices on backups and creating a Yearly, Monthly, and several time per week backups. Hard drive space is very cheap, as to compare to manually restoring records.from paper.
