Re: What is SAP standard solution for storing UPS, FEDex etc tracking numbers on deliveries? Which field, tables etc.

I'm not sure. Anyhow, for an detailed overview, you can read this:

http://www.slideshare.net/brishel/SAPXSIExpressdelivery409

In the following thread it seems as if you can also use this with your own interface and not specifically XSI.

And here is the customizing you can use for parcel tracking (via shipments)

Regards,

Sjaak