Mail merge questions

[Cereldine]

What is the advantage of using mail merge?
It has been suggested to me that i use mail merge in the current application that im building. This is mainly because my client needs to send a lot of custom letters that will be different each time one is sent.
From what i know about mail merge you can only display information in a document in a flat format ie u couldnt have customer details at the top and then a table of all the orders/ transactions they have carried out below? is this correct?

 

[jamesWP]

If you'd like customer details at the top and a list of ALL of their transactions etc. at the bottom you may want to look into reports, I'm pretty sure with mail merging you'd have to create a seperate letter for each transaction.