3529266 - Migrating Object Supplier error "A row already exists with this key"

While simulating or migrating the Mmigration Object "Supplier", the following errors are thrown:

• System error occurs when calling function module in target system
• System error (portion 0000000001, conversion object Z_VENDOR_2_XXX, at HHMMSS)
• A row already exists with this key (conversion object Z_VENDOR_2_XXX)

"Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental."

SAP S/4HANA Cloud Public Edition.

1. Open the Migration Project.
2. Select the Migration Object "Supplier".
3. Proceed with the steps until simulation/migration is complete.
4. Check the errors of the failed simulation/migration.

If Account No. is maintained in sheet Bank Details, the combination of fields Supplier, Bank Keys, Bank Country/Region Key and Account No. are used to check for duplicates:

In the sheet Bank Details, delete the duplicate instances with the same value in the following fields:

• Supplier
• Bank Country/Region Key
• Bank Keys
• Account No.

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