Creates a 'Loose' Web Employer for further use. Returns a TAuthID that contains the new ID for the 'loose' web employer. 

There are two uses for a 'Loose' Employer: 

• A 'Loose' Employer can be used to specify the employer for a client in a web enrolment, by calling AssignWebEmployerToWebClient.

• A 'Loose' Employer can be used as the invoicee for an invoice for a web enrolment, instead of the enrolee, by specifying the webEmployerId in a call to AddWebInvoice.

Note that a 'Loose' Employer can be attached as an invoicee and/or client employer to any number of web enrolments. The 'Loose' Employer will be deleted when a web enrolment is processed that references it and there are no other unprocessed web enrolments that reference it. It can also be deleted by calling DeleteLooseWebEmployer. 

Requires a valid registration key entry for the Short Courses feature. 

This function has security level "Protected", and can only be accessed by users that have explicitly been granted permission to the API.

[WebMethod(Description = "Creates a 'Loose' employer with the specified details for further use")]
public TAuthID AddLooseWebEmployer(string token, string employerName, string employerIdentifier, string description);