Message type: E = Error
Message class:  HRPADRUINFOTYPES - HR-RU PAD Messages 
Message number: 023
Message text: Issue date not equals start date
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 HRPADRUINFOTYPES023 with the description "Issue date not equals start date" typically occurs in the context of personnel administration when there is a mismatch between the issue date of a specific infotype record and the start date of the record itself. This error is often encountered when trying to create or modify records in infotypes related to employee data, such as infotype 0000 (Actions), infotype 0001 (Organizational Assignment), or others.
Cause: The error is caused by the following scenarios: Mismatch of Dates: The issue date you are trying to enter does not match the start date of the infotype record. For example, if you are trying to enter an issue date for a record that has a start date of January 1, 2023, but you are entering an issue date of January 2, 2023, this will trigger the error. Incorrect Data Entry: There may be a simple data entry error where
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
HRPADRUINFOTYPES022 Entered date is not special but standard
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
HRPADRUINFOTYPES021 It is allowed to fill up three essential fields only
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
HRPADRUINFOTYPES024 State Award document & doesn't exist
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
HRPADRUINFOTYPES025 State Award group & doesn't exist
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.