E-Commerce transaction issue

I'm here would like to know what are the common practise for the E-Commerce site to "integrate"
Their internal system with the payment gateway/financial institution?? Why I raise the question is because
all the transaction onkine must be "Updated" into our internal system (merchant system) for their internal used (finance, stock control) righ??

Ok maybe my hint in your previous thread was not quite clear enough. This is not the proper forum for these kinds of questions. Just to make sure we are crystal clear on this....here is the forum description posted right under the link to this forum:


Discuss and debate general technology/science issues in the news, media, and of interest. Web Building related topics should be posted in the Web Building forum instead.