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

While migrating with migration object supplier, the following error appears:

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)

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SAP S/4HANA Cloud Public Edition 2408

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

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

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

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