Look at the contract and determine what are the performance obligations, determine the transaction price, allocate that price, then recognize revenue when those performance obligations are met.
My guess is the customer taking possession is the performance obligation and you won't need to change anything. If this a review or audit, you will need to address this in your workpapers as well as the financial statement notes.
This has gotten a lot of folks spooked, but it reads to me like big GAAP problems where contracts are complex, have multiple performance obligations, etc. I can see this applying to contractors, but they are already doing this with % complete contracts.