CHECK_DUPRECS_IN_TAB and MESSAGE TYPE X dump in ST22

We faced an issue which just developed one Monday from nowhere , suddenly users in the Finance department could not post loans in certain company codes.

The solution as given by SAP was

Note 1977680 will resolve this issue.

But this note leads to a follow up issue, which is corrected by note 2109893.

Please apply note 1977680 and afterwards note 2109893 including execution of correction report.