How To Fix PYD_FND003 - Precondition failed: ETag &1 does not match

SAP Error Message - Details

• Message type: E = Error

• Message class: PYD_FND - Payroll Data Source Framework

• Message number: 003

• Message text: Precondition failed: ETag &1 does not match

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message PYD_FND003 - Precondition failed: ETag &1 does not match ?

  The SAP error message PYD_FND003 with the description "Precondition failed: ETag &1 does not match" typically occurs in the context of SAP Fiori applications or when using the OData services in SAP systems. This error is related to the use of ETags, which are part of the HTTP protocol used for web services to manage cache and ensure that the data being modified is the most current version.
  Cause:
  The error indicates that the ETag value sent in the request does not match the current ETag value on the server for the resource being accessed. This usually happens in the following scenarios:
  
  Concurrent Modifications: Another user or process has modified the resource after the ETag was retrieved, leading to a mismatch.
  Stale Data: The client is trying to update or delete a resource using an outdated ETag.
  Network Issues: There may be issues in the network that cause the ETag to not be updated correctly.
  
  Solution:
  To resolve the PYD_FND003 error, you can take the following steps:
  
  
  Refresh the Data: Retrieve the latest version of the resource from the server to get the current ETag. This can usually be done by reloading the data in the application or making a GET request to the OData service.
  
  
  Check for Concurrent Changes: Ensure that no other processes or users are modifying the same resource at the same time. If possible, implement a locking mechanism to prevent concurrent updates.
  
  
  Update the Client Logic: If you are developing an application, ensure that your client logic correctly handles ETags. Always fetch the latest ETag before making updates or deletions.
  
  
  Error Handling: Implement error handling in your application to gracefully manage situations where the ETag does not match. This could involve prompting the user to refresh the data or retry the operation.
  
  
  Consult Documentation: Review the SAP documentation related to the specific OData service or Fiori application you are using for any additional guidance on handling ETags.
  
  
  Related Information:
  
  ETag: An ETag (Entity Tag) is a part of HTTP, used for web cache validation and conditional requests from browsers for resources.
  OData Services: OData (Open Data Protocol) is a standard protocol for creating and consuming queryable and interoperable RESTful APIs.
  SAP Fiori: A user experience (UX) design approach that provides a consistent and intuitive interface across SAP applications.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or development team for further investigation, as they may have access to logs and additional tools to diagnose the problem.