Flatfile loading from Local Workstation

Hello,
I am training BW, and i have this Proccess Chain simulating some data, acquired from a Infopackage that pulls data from a Flatfile.
In the first execution i couldn't pull the data because it said
"An upload from the client workstation in the background is not possible"
I came here and basicly read that this is impossible to do. Nevertheless i got a bit further and discovered this option on the Tabs Menu of the Proccess Chain
"Execution -> Execute Synchronously" and the PC starts running in the background and my Flatfile infopackage get the data and i am able to populate the Target with that data!
My question is, what is this Execute Synchronously proccess doing and what, if some, effects or problems it may arise?
Thanks
Edited by: John Oliveira on Feb 11, 2009 1:54 PM

Hi
Synchronous Processing
A request is processed synchronously in a dialog process -- for example  when it is started in debug mode from DTP maintenance. The debugger settings allow you to enable automatic synchronization after each control method. In debugging mode, the system then executes a flush call after each control call. If a runtime error occurs, the call is displayed that caused the error.
You cannot Load Flat file from Local Work station untill and unless it is assigned at AL11 and you have proper Authorizations for the same.
Hope it helps and clear

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