In PEGA ROBOTIC AUTOMATION ARCHITECT ESSENTIALS, it mentions that while editing the interaction.xml file within Studio, the structure and syntax of the xml document is case sensitive and requiring precision with spacing as well" When considering the spacing, does it only depend on the spaces in between the key words or do I have to be careful about the indentation as well?

I am pretty sure that this is nothing to do with the indentation because,the XML spec define white space in between tags as content to be ignored.But thought its worth asking it here before getting messed up my interaction.xml file.