How To Fix MSITEM012 - Internal error in ANALYZE_ACT_FIELDCAT

MSITEM012 - Overview

• Message type: E = Error

• Message class: MSITEM - Line Item Display with ALV, RFITEM**

• Message number: 012

• Message text: Internal error in ANALYZE_ACT_FIELDCAT

What causes this issue?

An internal error has arisen in the form routine ANALYZE_ACT_FIELDCAT
for program RFITEM_INC.
This is due to inconsistencies between table T021S (special fields) and
structure RFPOSEXT.

System Response

During the processing of special fields in the line item list, errors
and even a program termination may occur.

How to fix this error?

Recreate the special fields in Customizing. If the error occurs again,
contact SAP.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MSITEM012 - Internal error in ANALYZE_ACT_FIELDCAT ?

  The SAP error message MSITEM012 indicates an internal error in the function ANALYZE_ACT_FIELDCAT. This error typically arises during the execution of certain operations in SAP, particularly when dealing with data analysis or field catalog processing in the context of Material Management (MM) or related modules.
  Possible Causes:
  
  Data Inconsistencies: There may be inconsistencies or corruption in the data being processed, which can lead to unexpected behavior in the system.
  
  Configuration Issues: Incorrect or incomplete configuration settings in the relevant modules can trigger this error.
  System Bugs: There may be bugs in the SAP system or specific patches that have not been applied, leading to this internal error.
  Memory Issues: Insufficient memory allocation or resource constraints on the server can also cause internal errors during processing.
  
  Solutions:
  
  Check Data Integrity: Verify the integrity of the data being processed. Look for any inconsistencies or missing entries in the relevant tables.
  Review Configuration: Ensure that all configurations related to the field