Message type: E = Error
Message class:  HRPAYCH_WHT - Messages for Withholding Tax 
Message number: 023
Message text: Current entry in 'ST' for PERNR: '&1'
Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.
To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.
Unfortunately, there isn't any extra information in this error notice.
First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).
Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.
You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.
The SAP error message HRPAYCH_WHT023 typically relates to issues with the withholding tax configuration for a specific personnel number (PERNR) in the payroll process. This error indicates that there is a problem with the current entry in the 'ST' (withholding tax) infotype for the specified employee.
Cause: Missing or Incorrect Data: The withholding tax information for the employee may be missing or incorrectly configured in the relevant infotype (usually Infotype 0015 for withholding tax). Invalid Tax Class: The employee may have an invalid tax class or status that does not correspond to the withholding tax settings.
Configuration Issues: There may be issues with the configuration of the withholding tax settings in the system, such as missing tax codes or incorrect tax rates. Data Consistency: There may be inconsistencies in the employee's master data that affect the withholding tax calculation.
Solution: Check Infotype 0015: Go to the employee's master data and check Infotype 0015 (Withholding Tax) to ensure
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
HRPAYCH_WHT022 Workplace/basic pay table 'OWPBP' for PRNR: '&1'
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
HRPAYCH_WHT021 Workplace/basic pay table 'WPBP' for PRNR: '&1'
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
HRPAYCH_WHT024 Input table 'IT' for PRNR: '&1'
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
HRPAYCH_WHT025 Copied wage types in IT for PERNR: '&1'
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.