Go to the settings of the online store and open the Payments tab. Under Configure payment methods, select Wallet One and click Connect:
If you don't have an account in this payment system, create one.
Specify the Shop ID (it is diplayed in the account settings of Wallet One).
In the uKit store settings, type the key into the Digital signature (MD5 key) field. The key can be found in the account settings of Wallet One under the Integration tab. To copy it, enable the MD5 option next to EDS creation method.
Copy the script URL from uKit and paste it into the account settings at the Wallet One's end.
You can keep the default name and description of the payment method or customize them. Once you filled out the form, click on the Connect button.