How To Fix /ISDFPS/POST_IDOCS021 - Predecessor of &1 exists with the same timestamp for measuring point &2

SAP Error Message - Details

• Message type: E = Error

• Message class: /ISDFPS/POST_IDOCS -

• Message number: 021

• Message text: Predecessor of &1 exists with the same timestamp for measuring point &2

Self-Explanatory Message

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.

What else can you do?

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message /ISDFPS/POST_IDOCS021 - Predecessor of &1 exists with the same timestamp for measuring point &2 ?

  The SAP error message /ISDFPS/POST_IDOCS021 indicates that there is a conflict with the predecessor of a measurement point in the context of posting IDocs (Intermediate Documents) in the SAP system. Specifically, the error states that a predecessor with the same timestamp already exists for the specified measuring point.
  Cause:
  This error typically occurs in the following scenarios:
  
  Duplicate Entries: There is an attempt to post a measurement document (IDoc) for a measuring point that already has a predecessor entry with the same timestamp. In SAP, each measurement point can only have one entry for a specific timestamp.
  Data Consistency Issues: There may be inconsistencies in the data being sent to the system, such as incorrect timestamps or duplicate records being generated in the source system.
  Timing Issues: If multiple IDocs are being processed simultaneously, it may lead to conflicts if they have the same timestamp.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing Entries: 
  
  Use transaction codes like IW38 or IW39 to check for existing measurement documents for the specified measuring point (&2). Look for entries with the same timestamp.
  
  
  
  Adjust Timestamps: 
  
  If you find that there are duplicate entries, you may need to adjust the timestamps in the IDoc being processed to ensure they are unique.
  
  
  
  Data Validation: 
  
  Validate the data being sent to the SAP system to ensure that there are no duplicates or incorrect timestamps. This may involve checking the source system or the process that generates the IDocs.
  
  
  
  Error Handling: 
  
  Implement error handling in the IDoc processing logic to manage situations where duplicates might occur. This could involve logging the errors and notifying relevant personnel.
  
  
  
  Consult Documentation: 
  
  Review SAP documentation or notes related to IDoc processing and measurement points for any specific guidelines or updates that may apply to your version of SAP.
  
  
  
  Contact SAP Support: 
  
  If the issue persists and you cannot identify the cause, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  IDoc Processing: Understanding how IDocs are processed in SAP can help in troubleshooting issues related to data consistency and conflicts.
  Measurement Points: Familiarize yourself with how measurement points are defined and managed in your SAP system, as this will provide context for the error.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.