Need input on best methodology

Hi All,

I am not sure if this is the right place to ask this, and please let me know which forum to ask this if this is not correct.

Our company A was taken over by another company B, and now we have to merge the company codes so as to display the Company B logo, address information and bank information on all the customer facing documents, most of which comes from configs like Company code master, House bank info and stuff.

So we have a project going to change many of the documents like the SO acknowledgements and billing invoices.

The only problem we have here is that the business wants to still see the old information for the documents created before the go-live date and they want to see the new information on the documents created after the go-live date.

We are now not sure of the best approach to go about and not sure how we are going to do this, or even if this is acheivable in the first place.

It would be great if you guys can put in some ideas if any you guys have to handle this situation.

Thanks,

Tatvagna Shah.