No province on the German checkout page

I had a problem when I encountered German logistics. The delivery address in Germany cannot be filled in the province in shopify, and the customer’s ERP and logistics contractors must fill in the province. The store plan is not plus, so the checkout page cannot be modified. Is there any other way?

There are no provinces in Germany, so this is not necessary. Here, this must be designed in the ERP system in such a way that it can be correctly mapped. Otherwise, simply add “Germany” as a rule in the ERP.