Knowledge Base

Creating subscription by API request fails with error status, however subscription created with no hosting

Creating subscription by API request fails with the error status, however subscription is created with no hosting.
Symptoms below are valid in case of WHMCS provisioning:
1. While an attempt to create a service with the username like testusername123456 via WHMCS the following error appears:
```
Module Command Error 
 Error code: 1023. Error message: Failed API request: Domain Service Web not exists: domain=example.com, id=35
```
2. Plesk allows the creation of a subscription via WHMCS with an existing username.
  
  During the creation, the subscription is partly-created and the following error occurs in WHMCS:
```
Order Accept Encountered Problems Error code: 2204. Error message: Unable to update hosting preferences. The user testuser already exists. Incorrect fields: "login".
```
  After the username changing in WHMCS and continuing the creation process, it fails with an error:
```
Order Accept Encountered Problems Error code: 1007. Error message: Incorrect name example.com. This domain name already exists.
```

Plesk bug PPPM-6071. It will be fixed in future updates.

For non-WHMCS cases, the only workaround is to remove the partially created subscription in Plesk manually and correct the API request.

For the first issue change the username testusername123456 according to the following requirements:

It is possible to use lowercase alphanumeric, dash, and underscore sym…