In Bizagi, it is not possible to consume Services whose methods have a (.) dot symbol.
For example, the method Create.Purchase is not a valid method name in Bizagi.
When the methods have a name that does not meet this restriction, an error message will be displayed for both, in execution time in the Bizagi Work Portal and in Bizagi Studio when the user is building the web service invocation.
What you can do?
In order to avoid the error presented when the name is not valid, we suggest changing the name of the method, when possible. Otherwise, you may create an intermediate method in order to invoke the method with an invalid name making sure that this intermediate method name does not have any dots (.) symbols.