Delete posted invoices and credit memos in the Icelandic version
Before v24.0
In Iceland, in accordance with legislation, you can't delete sales and purchase invoices and credit memos after they're posted. In Business Central, the Delete command isn't available for these types of posted documents.
After v24.0
If you activate the new Icelandic localization based on W1 Base App, you can delete sales, purchase invoices, and credit memos, but only in cases where they're older than seven years at the beginning of the new fiscal year.
Note
Technically this is controlled with the new ENUM field Document Retention Period in the General Ledger Setup page. This field is hidden and has the IS Docs Retention Period option by default enabling this control.