Adding supplier bank account using REST API

5:39AM

Summary:

There is a requirement to assign a bank account on an existing supplier (type: Employee). Bank account is already assigned in HCM for the Employee.

I am using below endpoint and payload to first create the bank account owner :

/fscmRestApi/resources/11.13.18.05/externalBankAccounts/{bank_account_id}/child/accountOwners

{
"AccountOwnerPartyIdentifier": <Supplier Party Id>,
"Intent": "Supplier"
}

This API was successfully processed.

After that, I am using below endpoint and payload to assign the bank account:

/fscmRestApi/resources/11.13.18.05/instrumentAssignments

{
"PaymentPartyId": <Supplier Party Id>,
"PaymentInstrumentId": <Bank Account Id>,
"PaymentFlow": "DISBURSEMENTS",
"PaymentInstrumentType": "BANKACCOUNT",
"Intent": "Supplier"
}

I am getting below error message:
"You must enter a valid external payee identifier and payment flow combination. (IBY-825848)

Adding supplier bank account using REST API

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