In cases of minor changes to a function’s purpose, where part of the function stays the same and the change will not affect ongoing business transactions, the GLN may remain the same. Function and purpose are intrinsically linked, and therefore a complete (major) change of a function purpose is not possible.
Trading partners interacting with the function will not need to be informed of a change. For trading partners interacting with the function for the first time, the GLN will be seen as new.