Ledger Agent - Is there any other syst maintenance time that user should not access Ledger Agent?

Summary:

Ledger Agent - Is there any other syst maintenance time that would impact the Ledger Agent so that users should not access the Ledger Agent at particular time?

Content (please ensure you mask any confidential information):

Apart of Quarterly Updates and Patch Windows time frame, is there any other system maintenane or any ESS job schedules that would impact the use of Ledger Agent or viewing Insight etc. at particular time? For example, Process Account Hierarchies ESS job, EDM updates to Fusion GL???

This is so that users are aware when not access the Ledger Agent?

Version (include the version you are using, if applicable):