Hi, @jeffchiz !
Thanks for reaching out to us about this. If First Class rates are showing up, this tells us they're likely still set up in the stores shipping settings and we'll want to remove them. From your Shopify admin, click Settings > Shipping & Delivery. You'll then want to click Manage Rates in the correct shipping profile. From there, find the Shipping Zone (Domestic, International etc.) that has Carrier and app rates listed. Open Carrier and app rates and click the three dots "..." to the right of the listed rates and click Edit rate. From this page, you'll be able to add and remove the different service types as you please. You can toggle off all of the First Class rates here.
Let me know if you have any questions!
If you're comfortable sharing the link to your website and some screenshots here, we can dig into this further to get to the bottom of this. If not, we can get you authenticated and take a closer look into this. Let me know what works best for you.
All the best!
@Oliver I would prefer not to divulge my store.
I have had to pay for another service to print my mail instead of Shopify because I can't exclude First Class Mail as an option. It would be nice if you could fix that. But if you also can't fix the fact that I can't print more than 20 orders at a time, I won't be able to print mail through Shopify regardless.
I'm happy to get authenticated to figure out why Shopify is causing this error, however.
No problem. I'd be happy to take a look for you. I've sent an email to the address you have listed on your Community account. We'll get you authenticated and can take a closer look into this together.
All the best!