If a large number of errors occur per second, it will be temporarily blocked after an error occurs as shown in the example below, so be careful not to make repeated calls when an error occurs.
{
"status" : 403,
"message" : "403 Forbidden",
"body" : "<HTML><HEAD>\n<TITLE>Access Denied</TITLE>\n</HEAD><BODY>\n<H1>Access Denied</H1>\n \nYou don't have permission to access \"http://api-gateway.coupang.com/v2/providers/openapi/apis/api/v4/vendors/callCenterInquiries/***** \" on this server.<P>\nReference #18.3c61ca17.1701137054.1f34800d\n</BODY>\n</HTML>\n"
}