I have a problem with the message "There is no mapping between ERP and CRM for partner" in CRM Web UI. which is very strange, it only shows up for 2 different account types, but still not for all. After the BP is created in CRM and approved by the appropriate person, the BP is replicated to the ERP system. Then we try to open the "ERP Sales Orders" assignment block and the aforementioned message appears immediately. I checked similar cases but did not find the correct answer.
I will be grateful for your help