So then

“So that” introduces a clause that describes the purpose or the supposed result of what was described in the pervious clause:
He stepped aside so that I might pass.
“So then” seems somewhat emphatically redundant to denote just “so”.

'So then' suggests sequence -- 'He hit you? So then what happened? Well, then I hit him back'

'So that', on the other hand, as AA says, indicates a cause and effect relationship -- 'He hit me, so that I had to hit him back'.

Thank you so much for your help! I am enlightened now.

On the subject of using the word 'then' please can you tell me which is the correct sentence:-

So what are the essential rules to remember when tweeting then?

or

So what then are the essential rules to remember when tweeting?

or

the word then doesn't need to be in at all!!??

'Then' has a meaning of its own (= therefore; consequently), so use it if you mean that. These are OK:

So what are the essential rules to remember when tweeting, then?
So what, then, are the essential rules to remember when tweeting?

'So that' is an introduction for, quite typically, an explanation as to why one is performing an act/doing a particular thing. For example: 'I am going home with Eleanor so that we may spend more beloved hours together.'
'So then' is most commonly used as a sentence tie. It leads on from one event to another. For example: 'So then I went home'.
So then can explain how someone has pursued s

Ok that is the thing!

Guest What is a difference between "so that" and "so then", please?

can we use "so then" in the below case? i.e.

"please share me the update so then i can continue with the next steps" - is this a valid statement to use so then or it should be used only to specify the past events?