A great feature called Background Error Check is going to be released in October 2020 with Wave 2 release for Business Central.

Currently, it is available as Public Preview.

On the General Journal Batch page, you can choose Background Error Check to have Business Central validate financial journals, such as general or payment journals, while you're working on them. When the validation is enabled, the Journal Check FactBox displays next to the journal lines and will show issues in the current line and the whole batch.

Navigate the below link to read the complete blog and watch the tutorial on the topic.

https://www.shubhfordynamics.com/post/background-error-check-for-journals-in-business-central-new-feature-releasing-oct-2020-wave-2

Thanks! Hope it helps! Cheers!