How To Fix PMEVC_UI123 - Maximum of groups with type "Tab" reached; group &1 gets "Pushbutton"

SAP Error Message - Details

• Message type: E = Error

• Message class: PMEVC_UI -

• Message number: 123

• Message text: Maximum of groups with type "Tab" reached; group &1 gets "Pushbutton"

What causes this issue?

The maximal number of characteristic groups with the type "Tab" is
exceeded. This maximal number is 9 or (more general, if modifications
exist) equal to GV_MAX_NO_OF_TABS of include LCEI0TAB.

System Response

The current characteristic group (which is to be created) gets the type
"Pushbutton". This can still be changed to other types (except "Tab") in
the "Basic Data" view of the characteristic group.

How to fix this error?

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

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 PMEVC_UI123 - Maximum of groups with type "Tab" reached; group &1 gets "Pushbutton" ?

  The SAP error message PMEVC_UI123 indicates that the maximum number of tab groups has been reached in a particular user interface (UI) context. This typically occurs in SAP applications that utilize the Web Dynpro or Fiori frameworks, where there is a limit to the number of tab groups that can be created in a single view or component.
  Cause:
  
  Exceeding Tab Limit: The error is triggered when the application attempts to create more tab groups than the allowed limit. Each tab group is designed to hold a set of related tabs, and exceeding this limit results in the system defaulting to a pushbutton instead of creating a new tab.
  Configuration Issues: Sometimes, the configuration of the UI might not be optimized, leading to unnecessary tab groups being created.
  Design Flaw: The design of the application might not adhere to best practices, resulting in an excessive number of tabs being created.
  
  Solution:
  
  Review Tab Usage: Analyze the UI design to determine if all the tab groups are necessary. Consider consolidating related tabs into fewer groups.
  Optimize UI Design: If possible, redesign the UI to use fewer tab groups. This may involve combining related functionalities into a single tab or using alternative UI elements (like dropdowns or accordions) to organize content.
  Check Configuration: Review the configuration settings of the application to ensure that it is set up correctly and efficiently.
  Consult Documentation: Refer to SAP documentation or guidelines regarding the maximum number of tab groups allowed in the specific context you are working with.
  Contact SAP Support: If the issue persists and you cannot find a resolution, consider reaching out to SAP support for assistance. They may provide insights specific to your version or implementation.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide updates and patches.
  Best Practices: Familiarize yourself with SAP UI design best practices to avoid similar issues in the future.
  Performance Considerations: Excessive use of tabs can also impact performance; optimizing the UI can lead to a better user experience.
  
  By addressing the root cause of the error and optimizing the UI design, you can resolve the PMEVC_UI123 error and improve the overall functionality of your SAP application.