Shipstation NOT syncing with SS commerce?

I have a client whose Shipstation needs to be reset and re-synced manually after every sale, and still every item shows as Pending until manually changed. I have tried to help her, but everything on the back end of both Squarespace and Shipstation seem to be set up properly. Is anyone else having issues with this sync -- I can't seem to find any help from Squarespace on how to get this issue resolved. As far as I understand, the goal is that Shipstation automatically marks as fulfilled and syncs tracking info after the label is printed etc. But that's not the case  .. any help?

Did you or your client get the email from Squarespace mid June titled "Action Needed: Update ShipStation" about a ShipStation Integration Update?

In part it said "On August 1, 2020 our direct ShipStation integration will be discontinued and ShipStation will no longer sync with your Squarespace site."

Sounds like the problem your client is having is related to not updating.

Squarespace updated the ShipStation integration. If you connected your site to ShipStation before March 31, 2020, Squarespace would have stopped sending order data to ShipStation on August 1, 2020, unless you reconnected it. For more information, see Connecting Squarespace to ShipStation.

One thing I noticed when following Squarespace instructions regarding where to find settings in ShipStation is that they didn't seem to jibe with where they are actually located.

It felt like Squarespace had a document about how to find certain settings from an old interface for ShipStation.

If you run into this issue, persevere to find the ShipStation settings! Unfortunately I didn't take notes so I can't tell you want the difference was. 😞