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Checking a Migrated Data FlowLocate this document in the navigation structure

Prerequisites

The migration of the data flow to be checked must have been performed up to the step Create DTPs from InfoPackages, but the 3.x DataSources must not yet have been migrated. This ensures that, as well as the data transfer processes, all 3.x objects are also still available for the simulation of the new, migrated load process and the 3.x load process.

Context

You can check whether a data flow was correctly migrated by comparing the migrated data flow to the 3.x data flow, that is, to the starting point of the migration. During the comparison, the system checks whether the transfer rules and update rules (especially formulas and routines) were migrated correctly to transformation rules, and whether both data flows produce the same data. To do this, the system executes the load process between a source object and a target object in simulation mode for both the 3.x data flow and the migrated data flow, and displays results that are different in the two data flows.

Procedure

  1. In the migration projects maintenance screen (transaction RSMIGRATE), select the migration project and choose Display.

    The system displays both the objects of the 3.x data flow and the objects of the migrated data flow in tree displays.

  2. Select the data transfer process for the source objects and target objects for which you want to compare the load processes.

    In the context menu of this data transfer process, choose Compare Data Flow.

Results

During the comparison, both loading routes are executed in simulation mode.

If the data flows produced identical target data, the system displays a corresponding success message.

If there are differences in the generated data, the system displays these differences in a table. The table has the structure of the target object. The displayed records are numbered in sequence and are identified as records from the 3.x data flow (type Old) or from the migrated data flow (type New). For additional troubleshooting, simulate the data transfer process. For more information about this, see Simulating and Debugging DTP Requests.