Message type: E = Error
Message class:  HRPAYDEMUSCHG_BV - Maternity Protection Act - Prohibited Activities 
Message number: 127
Message text: Cumulation wage type &1 is already used
Within the calculation of adjustment amounts for periods of prohibited
activities, the cumulation wage type &V1& is already used in another
average basis.
The system cannot perform the calculation as the cumulation wage types
have to be unique.
You have enhanced the calculation with an additional average for a
prohibited activity. Check the cumulation wage types that you used for
this average. You can only use cumulation wage types that do not already
exist in the subapplication
<DS:HRDS.DSYSLO_ECDAPPL_MGBVAAAAAAAAAAAAAAAA01_1VVV>MGBV</> (view
<LS>V_T596G</>).
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message HRPAYDEMUSCHG_BV127 indicates that a cumulation wage type (represented by &1) is already in use. This typically occurs in the context of payroll processing when there is an attempt to change or manipulate wage types that are already being utilized in a payroll run or in a specific payroll period.
Cause: Wage Type Already in Use: The cumulation wage type you are trying to modify or delete is currently being referenced in payroll results for the employee or group of employees. Payroll Period: The error may arise if the payroll period is still open or if the wage type has been processed in a previous payroll run.
Configuration Issues: There may be configuration settings in the payroll schema or wage type settings that are causing conflicts.
Solution: Check Payroll Status: Verify if the payroll period is still open. If it is, you may need to close the period or wait until it is
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
HRPAYDEMUSCHG_BV126 No entry exists in taxation table for average &1
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
HRPAYDEMUSCHG_BV125 Automatic calculation is not necessary
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
HRPAYDEMUSCHG_BV128 Calculating proportional reimbursement amount
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
HRPAYDEMUSCHG_BV129     Total gross PI amount (including adjustment amounts), capped
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
Click on this link to search all SAP messages.