422 - Unprocessable Entity while creating bank_transaction_explanation


I received a 422 Unprocessable Entity when trying to create a bank
transaction explanation.

Could you please have a quick look to the json below and let me know what’s
wrong with it?

(EUR 83.99 - Ref xxxxxxx -
VAT MOSS”,“sales_tax_rate”:20.0028575510787,“marked_for_review”:true}}

I suspect the issue comes from the VAT rate (I used a double which was
represented as String with lots of digits).

Would it be possible to get the field details for this API call (length and
expected format)?