SAP Message 5D578 - Do not enter a contribution class

Diagnosis
The system checks whether a SI settlement is possible with the existingtable entries and values from the infotype. If the HI settlement mustprocess a fixed value from table 5D10, you must specify a contributionclass in the infotype. In table 5D1N you can see whether thecontribution calculation takes place, using table 5D10.
Note how table 5D1N is read. The key of table 5D1N is filled using theHI keys from the infotype, the indictor 'X' for privately insured, theindicator 'X' for HI exempt persons under the annual remunerationlimit, and the health insurance indicator from table 5D1K.
If the fields 'total contribution calculation', 'employer contribution'or 'tax free employer contribution' are marked with 'F', the table 5D10is needed to calculate the HI contribution.