Hope I can make this clear -

I found 2 WL books at the local UBS. Books that I knew were likely to be Wish Listed together. I posted the first book, then PM'd the other person about some condition issues. I also checked her WL for the other book, and told her I'd post it directly to her WL so I could mail them together. She said "great". 

I made a point of checking that I was on her WL when I clicked post this book, and I checked again that it said her name on the next click oportunity and figured I must have done it correctly.  This morning I see that the two books are headed to different states!

I tried several different ways to look at my transaction archive, but neither book is listed yet. I thought maybe the first person didn't have enough credits or something and canceled the request. maybe?  Do the books not show up in the transaction archive until after a certain point in the transaction? say -- after being marked mailed or something?

I have sent a PM to the first person, asking if she canceled the offer.

It doesn't show up in your TI until the transaction is finished (received, canceled). It sounds like she canceled on her end & it went to the next person in the FIFO line.

If the other member does not accept the wish list offer, then it never shows up in your T.I. I guess because it was never a real request.

she either cancelled or didn't accept the WL offer.