Message type: E = Error
Message class:  HRPAY99LOAN - International Payroll: Company Loans 
Message number: 028
Message text: You have not created a loan payment
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 HRPAY99LOAN028 indicates that there is an issue related to loan payments in the payroll processing module. Specifically, the message states: "You have not created a loan payment." This typically occurs when the system expects a loan payment to be processed, but none has been recorded for the employee in question. Causes: Missing Loan Payment Entry: The most common cause is that a loan payment has not been created for the employee in the payroll system. Incorrect Configuration: There may be configuration issues in the payroll settings that prevent the loan payment from being processed. Data Entry Errors: There could be errors in the employee's master data or payroll data that affect loan payment processing. Timing Issues: The loan payment may not have been created in the correct payroll period or may have been inadvertently deleted. Solutions: Create Loan Payment: Navigate to the relevant transaction (e.g., HR Master Data or Loan Management) and create
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
HRPAY99LOAN027 The NUM field cannot be used with the specification 'N'
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
HRPAY99LOAN026 Operatn &1 specificatn 'N' is only possible together with P0045 and PRT
 The operation is cancelled with an errorHow to fix this error?  Refer to the documentation on the <DS:HRDS.DSYSLO_ECIOPEX_ABP2AAAAAAAAAAAAAAAA___1...
HRPAY99LOAN029  Complete repayment exists; you must first delete it
What causes this issue?  You want to calculate the repayment for a company loan, for which a complete repayment (payment type 0700) already exists. Fo...
HRPAY99LOAN030 Calculate present value for monthly periods only
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.