The modules I am adding to my XOOPS site connect to another database to pull their data. Everything in that database is referenced by a 'RepNumber'. I need to set that RepNumber as a session variable. I map it by the XOOPS user email, which are common fields in the 2 databases. Where is the best place to do this? I have the bonding code in the /include/checklogin.php file now, but it seems that the variable is missing at times based upon how I enter the site. Where is the best place to place my bonding code for this?

include/common.php is loaded in almost every page.

Ok, thanks. What would be the best way to get the XOOPS user email address from there?

You can place your code just before the ending tag ?>