Why did my payment fail with an error "beneficiary name: Value is invalid"?

If you get this error when initiating a payment: 

{"single_immediate_payment.beneficiary.name":["Value is invalid","Value is invalid"]}

And it is for the following markets:

• Portugal
• Belgium
• Austria
• Spain
• Netherlands
• Denmark
• Lithuania
• Poland

It may be related to the reasons below:

1. Beneficiary name parameter is longer than 30 characters
2. Beneficiary name parameter contains leading and/or trailing spaces

NB: For Poland, the beneficiary name parameter has a maximum length of 35 characters, and 70 for MBank specifically. 

Solution

1. Ensure you truncate the beneficiary name parameter before initiating payments.
2. Ensure you trim trailing spaces in the beneficiary name parameter before initiating payments.