Hello Aissam
This is a typically controversial topic to be discussed when it comes to integrating "delete" transaction type
From a technical perspective, it is absolutely doable regardless of the fact that there is no eConnect schema for deleting transactions. Although ,why would you build an integration for deleting journal entries ?
Building an integration between two systems means that there is a specific business case requiring transactions to be migrated from one system to another, such as migrating sales transactions from POS machines, recording deferral transactions as derived from your expenses system ...etc. In your case, you are automating the process of deleting journal entries, then why they have been imported at the very first place ?
The bottom line is, It is not recommended to automate a process of deleting batches on a database level, regardless of the fact that is is definitely doable.
Looking forward to hearing from you