Error when mapping the base portfolios to target table &1

What causes this issue?

INCLUDE TRM_STATIC_ANA_STRUCT OBJECT DOKU ID TX
As prerequisite for the migration, the base portfolios need to be mapped
from the source data structure to the static target data structure. This
mapping failed.

System Response

The migration cannot be performed.

How to fix this error?

Please 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.