We have used Margin Calculator API (https://smartapi.angelbroking.com/docs/MarginCalculator) to find margin of instrument in our code.
In past week we observed that it returned 0 for some of the calls without any error in parameters.

One such call was done at 14:00:12 on 6th August with request parameters:
{'positions': [{'exchange': 'MCX', 'qty': 8, 'price': 0, 'productType': 'CARRYFORWARD', 'token': '456966', 'tradeType': 'SELL'}]}

The API gave correct response with same parameters from another call at the same time.
Can you please help us understand if anything is incorrect from our side or if any known issues are there for API.

Let us know if any further information is required. Thanks.

@suraj-g2 We are facing the same issue while generateSession(). Our code hasn't changed but still we are facing this intermittently. Someone from angel one should look into it...