According to regulatory requirements of Central bank of United Arab Emirates, all payments, ordered in favour of beneficiaries in UAE, should include 3-letter code, indicating the purpose of payment.
The 3-letter code should be relevant to the information filled in the field "Details".
In case that such code is not specified, the payment can be rejected from correspondent bank, which will lead to additional fees for the sender.
For additional information you can see all available codes in the attached file.
TOKUDA BANK AD