How to add related fields from one transaction to other transacction?

Hi all,

I have a problem. I need to add an OPPORTUNITY field (SALESCYCLE) to the ACTIVITY transaction because of an upgrade and I'm now in a new world... The CRM 2007 is an unexplored place to me.

I added some custom fields (Z fields from the CUSTOMER_H) by adding the context node BTCUSTOMERH to the BT126H_APPT component, view ApptDetails, with transaction BSP_WD_CMPWB (thanks Stephen Johannes for your blogs) and all works correctly.

I tried doing the same with the SALESCYCLE and it doesn't worked... :_(

I added the context node BTOPPORTH, but I'm sure I failed at the wizard step with the "Higher level context node" or with the "BOL Relation", but I can't find the correct answer. I found the field in the "Configuration tab", I put it in my view but the GET method doesn't work... The field remains always void.

I don't have problems adding activity related fields, but when I try to add some flow related (opportunity one in my case) fields it's different.

I have been looking for any solution but I have only seen that I can add this attribute directly to one context node and modify some BAdI or do any thing similar, but I don't know how to do that either. I will accept this solution if someone tells me how to do that... But I think the first solutions could be the most appropiate (I can be wrong... of course!)

Thanks in advance....

Sergio