Error managment in services

Could you please provide more details? I apologize for the misunderstanding, the description is not too clear. Does the error in B occur as a result of a service calling, i.e infotable is no longer returned? You may try catch in A around the service B, and then ensure your result is outside of that .

Hi Stephane,

You can use throw "text";  // -- I think it's not officially supported anyway, I've used in the past but I'm removing almost everywhere on my code

It works, but I recommend you to minimize the times on your programing blocks when a Exception occurs, as it's super slow to process. For instance if you Iterate over N-objects and you relay on a try{}catch inside the loop to catch errors if you have many of them it will be super slow to execute.

If you can, better you prevent calling B if you can know in advance that there will be an error ( param checking and alike ) and/or detect error on B and return a special case Infotable and not throwing an exception.