Message type: E = Error
Message class:  HRPAYDEMUSCHG_BV - Maternity Protection Act - Prohibited Activities 
Message number: 166
Message text: Calculation proportional EE Share German Pension Reform &1
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The SAP error message HRPAYDEMUSCHG_BV166 typically relates to issues in the calculation of the employee's share of pension contributions in the context of the German Pension Reform. This error can occur during payroll processing when the system encounters inconsistencies or issues with the data related to pension contributions.
Cause: Data Inconsistencies: The error may arise due to incorrect or missing data in the employee's master data, such as pension scheme details, contribution rates, or other relevant fields.
Configuration Issues: There may be issues with the configuration of the payroll schema or the specific rules related to the pension contributions in the system. Legal Changes: Changes in legislation or regulations regarding pension contributions may not have been updated in the system, leading to discrepancies in calculations. Incorrect Infotypes: Missing or incorrect entries in relevant infotypes (e.g., Infotype 0014 for recurring payments and deductions) can also trigger this error.
Solution: Check Employee Master Data: Review the employee's master data
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