I have this same question - Can some products be flat rate while others are calculated? Flat Rate per item with additional parameters.
More importantly is there a mod that works in the following way - either free or $$ - USPS ONLY.
**note - FR - Flat Rate, E - Envelope, MB - Medium Box, LB - Large Box, FC - First Class, Priority = Both, Priority &/or Express based upon weight (as opposed to Flat Rate).
Each Product Listings take two shipping variables;
1. Package Size Option (FRE, FRMB, FRLB, PARCEL, FC) (not required)
2. Weight (required). I understand that volume is not an option at this point.
Case 1; Package Size Option is chosen (by Admin) & This is the only item in the customer's cart =
Package Size Option will be the only shipping option available to the customer.
Case 2; Package Size Option is NOT chosen (by Admin) & This is the only item in the customer's cart =
Two shipping options available; Priority Mail & Parcel Post.
If their is more than 1 item in the customer's cart >>
Case 1; if - 2 up to 3 FRE items - shipping will be calculated by weight - the customer will be able to choose; Parcel Post, Priority, or Priority FR Medium Box.
Case 2; if more then 4 FRE items - shipping will be calculated by weight - customer will choose from; Parcel, Priority, or FR Large Box.
Case 3; if - 1 FRMB item + Case 1 - customer will choose from; Parcel, Priority or FRLB.
Case 4; if - 1 FRMB item + anything other than Case 1 - customer will choose from; Parcel or Priority.
Wow - Yes, I just did it :). Just figuring that out hurt my brain lol.