How To Fix SIG503 - Signature order for signature strategy &1 contains loops

SAP Error Message - Details

• Message type: E = Error

• Message class: SIG - Digital Signature

• Message number: 503

• Message text: Signature order for signature strategy &1 contains loops

What causes this issue?

The signature sequence for signature strategy &V1& contains loops.
However, the system does not support signature strategies with loops.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Correct the signature sequence so that it does not contain any loops.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SIG503 - Signature order for signature strategy &1 contains loops ?

  The SAP error message SIG503 indicates that there is a problem with the signature strategy configuration in the system. Specifically, it points out that the signature order for the specified signature strategy contains loops, which means that the sequence of signatures is not properly defined and may lead to circular dependencies.
  Cause:
  The primary cause of this error is a misconfiguration in the signature strategy settings. This can happen if:
  
  The signature order is defined in such a way that it creates a loop (e.g., Signature A requires Signature B, and Signature B requires Signature A).
  There are incorrect or conflicting entries in the signature strategy configuration.
  The signature sequence is not linear and leads to a circular reference.
  
  Solution:
  To resolve the SIG503 error, you can follow these steps:
  
  
  Review Signature Strategy Configuration:
  
  Go to the configuration settings for the signature strategy in SAP.
  Check the order of signatures defined for the strategy in question.
  
  
  
  Identify Loops:
  
  Look for any circular dependencies in the signature order. Ensure that no signature is dependent on another signature that, in turn, depends back on the first one.
  You may need to create a flowchart or diagram to visualize the dependencies.
  
  
  
  Correct the Configuration:
  
  Modify the signature order to eliminate any loops. Ensure that the sequence is linear and does not create circular dependencies.
  If necessary, consult with your team or stakeholders to determine the correct order of signatures.
  
  
  
  Test the Changes:
  
  After making the necessary adjustments, test the signature strategy to ensure that the error no longer occurs and that the signatures are processed correctly.
  
  
  
  Documentation:
  
  Document the changes made to the signature strategy for future reference and to help prevent similar issues.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like SPRO to access the configuration settings for signature strategies.
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or updates related to this error.
  Support: If you are unable to resolve the issue, consider reaching out to SAP support or consulting with an SAP expert who specializes in workflow and signature management.
  
  By following these steps, you should be able to identify and resolve the cause of the SIG503 error in your SAP system.