How To Fix FDT_DSM015 - Objects of custom expression type (&1) are not deployable

FDT_DSM015 - Overview

• Message type: E = Error

• Message class: FDT_DSM - BRFplus: Decision Service Manager

• Message number: 015

• Message text: Objects of custom expression type (&1) are not deployable

What causes this issue?

You have tried to deploy a function to a managed system as a service.
However, the system has determined that a custom expression type, which
is not supported for the release of software component SAP_BASIS in your
managed system, is used in the service.

System Response

The service can neither be activated nor can it be deployed.

How to fix this error?

Contact the owner of the custom expression type and try any of the
following alternatives:
Custom expression type does not yet support Decision Service Management
scenarios: Ask the expression type owner to extend the expression type
so that it can be used in DSM scenarios.
Custom expression type does support Decision Service Management
scenarios, but not the release of software component SAP_BASIS that is
present in your managed system: Ask the expression type owner to extend
the expression type so that it supports the SAP_BASIS release in your
managed system.

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 FDT_DSM015 - Objects of custom expression type (&1) are not deployable ?

  The SAP error message FDT_DSM015 indicates that there is an issue with deploying objects of a custom expression type in the SAP system. This error typically arises in the context of SAP's Flexible Data Model (FDT) or when working with custom expressions in the context of data transformation or data mapping.
  
  Cause:
  The error message FDT_DSM015 is triggered when:
  
  Custom Expression Type: The expression type you are trying to deploy is custom and not recognized as deployable by the system.
  Missing Implementation: The custom expression may not have a proper implementation or is not correctly defined in the system.
  
  Configuration Issues: There may be configuration issues in the FDT framework that prevent the deployment of custom expressions.
  Dependencies: The custom expression might have dependencies that are not met or are not properly configured.
  
  
  Solution:
  To resolve the error FDT_DSM015, you can take the following steps:
  
  
  Check Custom Expression Definition:
  
  Ensure that the custom expression is correctly defined and implemented. Review