Translation. Region: Russian Federation –
Source: Moscow Exchange – Moscow Exchange –
An important disclaimer is at the bottom of this article.
From December 22, 2025, additional requirements will be introduced for the RegNum (registration number) field when registering clients through the Personal Account and via the Web API.
The essence of the changes:
The RegNum field cannot contain only zeros. The value must contain at least one significant character—a digit from 1 to 9 and/or a letter. The characters “_” or “-” are allowed, but without significant characters, they are also considered zero. This prevents the registration of invalid identifiers.
What will change:
In the Personal Account (Client Registration section): when entering a RegNum consisting only of zeros, the system will display the error: "Allowed characters are letters, numbers, hyphens, and underscores. The registration number cannot be zero." In the Web API: when submitting an invalid RegNum, the ERC response will contain the error: "The value specified for the RegNum field (Registration number of the mutual investment fund trust management rules assigned by the Bank of Russia) is invalid."
Testing:
You can test the changes in a test environment:http://play-apim.moex.com/.
The XSD schema for validation is available at the following link:http://ftp.moex.com/pub/KlintsAPI/WebAPI/ClientRegistration/test/.
Contact information for media: 7 (495) 363-3232PR@moex.com
Please note: This information is raw content obtained directly from the source. It represents an accurate account of the source's assertions and does not necessarily reflect the position of MIL-OSI or its clients.