FD32 set credit limit for customer
I am setting up credit limit for customer. I have been realized that I am able to increase a customer's credit limit but not able to decrease it. Whenever I am trying to decrease a customer's credit limit say from 5000 to 1000, I got a message saying:' A total limit of 5000 has already been dtermined". and the message is F4775.
Please advise 1. How to reduce credit limit. 2. How to check SAP message.
Your advice will be deeply appreciated.