Quote Originally Posted by lat9 View Post

The correction is currently available on the plugin's GitHub repository, as described by this issue and will be part of the forthcoming v1.0.12.
@lat9... Thanks for this. I have uploaded the altered OBSERVERS file and with the full Gitub version now installed, the OPC appears to be working - both with logged-in customer checkout and PayPal express. I have discount vouchers active, so will put a test through for this too so I can see if ot_gv is affected in any way, when the totals are re-calculated.

Thanks again... this module certainly influences checkout. It has been interesting for me over the last couple of days to see (using "whos-online") a number of abandoned carts - more than expected - while the shop has been using the standard multi-page checkout.

It would then, appear to be an imperative that OPC is considered as a candidate for core ZC in future versions. Modern shoppers - mostly on mobile - will not wade through a clunky checkout process...