In version 2021 wave 2 (v19) a new feature was introduced, called “Extend general ledger posting aggregations”.

The reason for this new feature is that the table “Invoice Post. Buffer” could not easily be extended. This table is used to buffer the entries that will be created during a posting procedure. Entries are combined (amounts are added up) based on their values in the primary key, which consists of 15 different fields. A number of localizations include modifications to this table, resulting in significant changes.

Source : Kauffmann @ Dynamics 365 Business Central
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