Poshmark is making big changes to their shipping offering hoping lower rates will outweigh slower service with switch from Priority Mail to Ground Advantage in new contract deal with USPS that goes into effect September 12th.
In an announcement posted in the Poshmark blog today the company said they are making the change in reaction to soon to come industry-wide rate increases on Priority Mail shipping, saying they have worked with USPS to negotiate a new, lower shipping rate agreement by switching to exclusively using Ground Advantage instead.
