How To Fix PAIS021 - There is no valid expand structure for table infotype &1

SAP Error Message - Details

• Message type: E = Error

• Message class: PAIS - Messages for PA-IS (Ad Hoc Query etc.)

• Message number: 021

• Message text: There is no valid expand structure for table infotype &1

What causes this issue?

The system has identified this infotype as a table infotype because it
has an entry in the TBTAB field of table T777D. Table infotypes require
you to enter the name of an infotype expand structure in the PPNNN_EXP
field of table T777D. This entry is either missing or invalid.
The infotype is only available in restricted form in the InfoSet. It is
not possible to report on the fields of the table division.

How to fix this error?

Check that the infotype is, in fact, a table infotype. If it is, you
must ensure that the TBTAB and PPNNN_EXP fields of table T777D are
maintained correctly. You must then create the InfoSet once again.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message PAIS021 - There is no valid expand structure for table infotype &1 ?

  The SAP error message PAIS021, which states "There is no valid expand structure for table infotype &1," typically occurs in the context of HR (Human Resources) modules when there is an issue with the infotype structure or configuration. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Missing or Incorrect Configuration: The error often arises when the system cannot find a valid "expand structure" for the specified infotype. This can happen if the infotype is not properly configured in the system or if the necessary structures have not been defined.
  Custom Development Issues: If there are custom developments or modifications related to the infotype, they may not have been implemented correctly, leading to this error.
  Transport Issues: If the infotype or its associated structures were transported from one system to another (e.g., from development to production), there may have been issues during the transport process.
  Version Compatibility: Sometimes, the error can occur due to version mismatches between different components of the SAP system.
  
  Solution:
  
  
  Check Infotype Configuration:
  
  Go to the transaction code SPRO and navigate to the relevant configuration for the infotype in question. Ensure that the infotype is correctly defined and that all necessary structures are in place.
  Verify that the infotype is active and that the necessary fields and structures are defined.
  
  
  
  Review Expand Structures:
  
  Use transaction SE11 (Data Dictionary) to check the expand structure associated with the infotype. Ensure that the structure exists and is correctly defined.
  If the expand structure is missing, you may need to create it or restore it from a backup.
  
  
  
  Check for Custom Code:
  
  If there are any custom enhancements or modifications related to the infotype, review the code to ensure it is functioning correctly and does not interfere with the standard processing of the infotype.
  
  
  
  Transport Management:
  
  If the issue arose after a transport, check the transport logs for any errors or warnings. Ensure that all necessary objects were included in the transport request.
  
  
  
  Consult SAP Notes:
  
  Search the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates available that resolve the issue.
  
  
  
  Testing:
  
  After making any changes, perform thorough testing to ensure that the infotype functions as expected without triggering the error.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11 (Data Dictionary), SE80 (Object Navigator), and SPRO (Customizing).
  Documentation: Review SAP documentation related to HR infotypes and their configurations for a better understanding of how they work.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with an SAP Basis or HR consultant who can provide more in-depth analysis and support.