Retrieves a list of the identifiers of all records deleted from a particular table since a specified date. 

The tableName parameter must be one of the following:

• CLIENT (the result will be a list of deleted client codes, since upgrading to VETtrak 4.3.9)
• EMPLOYER (the result will be a list of deleted employer identifiers, since upgrading to VETtrak 4.3.9)
• ENROLMENT (the result will be a list of deleted enrolment and occurrence IDs, since upgrading to VETtrak 4.3.9)
• PROGRAMME (the result will be a list of deleted programme IDs, since upgrading to VETtrak 4.3.9)
• ENROUNIT (the result will be a list of deleted enrolled unit IDs, since upgrading to VETtrak 4.3.10)
• QUALCLIE (the result will be a list of deleted client award IDs, since upgrading to VETtrak 4.3.11)
• SUBURB (the result will be a list of deleted suburb IDs, since upgrading to VETtrak 4.3.11)
• INVOICE (the result will be a list of deleted invoice IDs, since upgrading to VETtrak 4.4.0)
• PAYMENT (the result will be a list of deleted payment IDs, since upgrading to VETtrak 4.4.0)

Only the identifiers of records that have been deleted after the specified sinceDate parameter are returned. 

The result is a TAuthStringList. The TextList property contains an array of strings, each one an identifier for a deleted record. If no records in the specified table were deleted since the specified date, the TextList will be empty. 

A token is passed for authentication. If the authentication fails, or other errors occur, no data will be returned. The result of the authentication is represented by a TAuthenticate object. 

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

[WebMethod(Description = "Gets a list of the identifiers of all records deleted from a table since a date")]
public TAuthStringList GetDeletedRecordsSince(string token, string tableName, DateTime sinceDate);