How To Fix MCW_AA126 - No OLTP field names have been specified. See long text.

MCW_AA126 - Overview

• Message type: E = Error

• Message class: MCW_AA - Messages for BW Interface Analytical Applications

• Message number: 126

• Message text: No OLTP field names have been specified. See long text.

What causes this issue?

You must specify an OLTP field name so that the query can later be used
in an analytical application.
When you create new query fields, this field name may remain blank.
This is because the system cannot propose a default due to the current
system relationship between OLTP and BW.
In order to interpret the data returned by the query &V1&, you must
enter a field name here.

How to fix this error?

Specify a name as suggested by the documentation for the analytical
application this query will be used in.

Error message extract from SAP system. Copyright SAP SE.

MCW_AA126 - Details

• The SAP error message MCW_AA126 indicates that there are no OLTP (Online Transaction Processing) field names specified in the context where the error is occurring. This typically happens in the context of data extraction or reporting, particularly when working with the Asset Accounting (FI-AA) module or similar areas where data is being pulled from the database.
  
  Cause:
  
  Missing Field Names: The most common cause of this error is that the configuration or the selection criteria for the report or data extraction does not include any OLTP field names. This could be due to a misconfiguration in the report settings or the data extraction process.
  Incorrect Data Source: The data source being used may not be correctly set up to provide the necessary OLTP fields.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to access the required fields, leading to this error.
  
  
  Solution:
  
  Check Configuration: Review the configuration settings for the report or data