I am getting 500 internal server error when I am posting wrong parameter in API request. I was trying to create customer through API while posting customer data, I posted groupid instead of group_id and that shows me 500 internal server error.
Open tab customerAccountManagementV1 ->Post /V1/customers to create account
Post customer data to create customer account with all correct information, instead of passing group_id pass groupid (we can try with any other parameters too).
Click on Try it Out! button
"message": "Internal Error. Details are available in Magento log file. Report ID: webapi-588f3c623a140"
You had passed invalid parameters in your request, groupid doesn't exist in the request parameters. (Something like this)
As i had the access of server so i got my error but there is no process in magento to handle this error and show a correct/useful message, so that API user will be able to get what exact error they made in their API request. #