Existing and Migrated Partners
(RFTBUP03) 
You may have to run a reconciliation report if you used SAP Business Partners in addition to Treasury Business Partners before the migration. The reconciliation report is run in three steps.
You use this report to determine the duplicate partners. Existing business partners are reconciled with the migrated business partners and any duplicate partners are displayed in a list.
If you determined duplicate partners, execute report RFTBUP03_2. This report transfers the duplicate partners to the SAP Business Partner. If necessary, you can delete the migrated duplicate partners using report RFTBUD03.
This report program is part of the conversion program supplied by SAP for converting the Treasury Business Partner to the SAP Business Partner. It comprises the following reports, which you should execute in the specified order:
...
1. Preparation and structure of Customizing
a. Initialize conversion control tables (RFTBUC00)
b. Initialize SAP BP Customizing (RFTBUC01)
c. Generate Further Customizing Tables (RFTBUC03)
d. Generate Customizing for the SAP Business Partner (RFTBUC02)
2. Reports for converting the business partner
a. Convert the TR Business Partner to the SAP Business Partner (RFTBUP01)
b. Convert Treasury BP Relationships to SAP BP (RFTBUP02)
c. Convert notes (RFTBUP06). We recommend that you only execute this report (when a reconciliation is required) after you have run the reconciliation report (report program RFTBUP03_2 see below).
3. Reconciliation
a. Existing and Migrated Partners (RFTBUP03)
b. Reconciliation report: Selected partners (RFTBUP03_2)
c. Delete reconciled (duplicated) SAP BP (RFTBUD03)
You can get an overview of code conversion for business partner data under Business Partner Conversion (Phase I).
Features
Report RFTBUP03 compares the names (or sort fields / external partner numbers) of the migrated SAP Business Partners with the names (sort fields / external partner numbers) of the non-migrated SAP Business Partners (in other words, SAP Business Partners that were created in the application). If you discover, for example, that a TEST partner resulted from the migration, and a TEST partner was already created in the application, these will be offered for selection in the list.
Selection
Automatic Selection indicator
If you set this indicator, all the SAP Business Partners are automatically selected for reconciliation with the migrated SAP Business Partners.
Enter the criteria you want to use for the reconciliation. You can choose from the following criteria:
· External partner number
· Sort field 1
· Sort field 2
· Matchcode name
Output
After you have executed the report, a list of duplicate business partners appears. All the partners that are selected are reconciled with the migrated SAP Business Partners. You have the option of manually selecting/deselecting the indicator for the partners to be reconciled, or executing the report (depending on whether you have set the ‘Automatic Selection’ indicator).
If several identical partners are found from the application for a migrated partner, you can only ever select one of them for reconciliation.

When the list is displayed, you have to choose SAVE. Only then does the system copy the selected duplicated partners to the reconciliation table (BPTRGP_ABGL).