How To Fix TN798 - Signature verification not possible (SAP Note 2520826 is not implemented)

SAP Error Message - Details

• Message type: E = Error

• Message class: TN - Support Package Manager (SPAM) Messages

• Message number: 798

• Message text: Signature verification not possible (SAP Note 2520826 is not implemented)

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 TN798 - Signature verification not possible (SAP Note 2520826 is not implemented) ?

  The SAP error message TN798, which states "Signature verification not possible (SAP Note 2520826 is not implemented)," typically occurs in the context of electronic document processing, particularly when dealing with digital signatures in SAP systems. This error indicates that the system is unable to verify the signature of a document because the necessary SAP Note (2520826) has not been implemented.
  Cause:
  The primary cause of this error is the absence of the implementation of SAP Note 2520826, which contains important updates or corrections related to the signature verification process in SAP. This note may include enhancements or fixes that are necessary for the proper functioning of digital signatures in your SAP environment.
  Solution:
  To resolve this issue, you should implement SAP Note 2520826. Here are the steps to do so:
  
  
  Access SAP Support Portal: Log in to the SAP Support Portal (https://support.sap.com).
  
  
  Search for the Note: Use the search functionality to find SAP Note 2520826. You can enter the note number directly in the search bar.
  
  
  Review the Note: Read through the note to understand its contents, prerequisites, and any specific instructions provided by SAP.
  
  
  Implement the Note: Follow the instructions provided in the note to implement it in your SAP system. This may involve using the SAP Note Assistant (SNOTE) to apply the note.
  
  
  Test the Functionality: After implementing the note, test the functionality that was previously causing the error to ensure that the signature verification process is now working correctly.
  
  
  Related Information:
  
  SAP Notes: Always check for the latest version of the note or any related notes that may provide additional context or updates.
  SAP Community: You can also search for discussions or threads in the SAP Community forums where other users may have encountered similar issues.
  System Requirements: Ensure that your SAP system is on a version that supports the implementation of the note. Sometimes, additional prerequisites may need to be met.
  Backup: Before implementing any SAP Note, it is advisable to back up your system or test the implementation in a development environment first to avoid any disruptions in your production system.
  
  If you continue to experience issues after implementing the note, consider reaching out to SAP support for further assistance.