Payables credit memo processing using oracle business network

We are trying to process credit memo via OBN from our supplier. Even though invoice amount is received as negative still invoice import failed with the error "Inconsistent price, quantity, and amount"

Attaching sample incoming credit memo payload we received from supplier

Can you please let us know if there are any additional setups needs to be done to process credit memos via OBN?

Is there any change required in the incoming payload?

Thanks,

Madhu K