Mysterious order tags

Developer API
1

Hi,
Today I got three orders with mysterious order tags assigned to them. Can you please confirm how did they got tagged?

tags are formatted as bold below.

{
“exchange”: “NFO”,
“product”: “I”,
“price”: 0.0,
“quantity”: 375,
“status”: “complete”,
“guid”: null,
“tag”: “Or69Hx55”,
“instrument_token”: “NSE_FO|61725”,
“tradingsymbol”: “NIFTY25MAY24800CE”,
“trading_symbol”: “NIFTY25MAY24800CE”,
“order_type”: “MARKET”,
“validity”: “DAY”,
“trigger_price”: 0.0,
“disclosed_quantity”: 0,
“transaction_type”: “BUY”,
“average_price”: 210.07,
“filled_quantity”: 375,
“pending_quantity”: 0,
“status_message”: null,
“status_message_raw”: null,
“exchange_order_id”: “1600000044553075”,
“parent_order_id”: null,
“order_id”: “250527000189900”,
“variety”: “SIMPLE”,
“order_timestamp”: “2025-05-27 10:12:39”,
“exchange_timestamp”: “2025-05-27 10:12:39”,
“is_amo”: false,
“order_request_id”: “1”,
“order_ref_id”: “UDAPI-I-bfQ7xqxy8QveCGvTagyXK7Ju”
},

{
“exchange”: “NFO”,
“product”: “I”,
“price”: 0.0,
“quantity”: 1200,
“status”: “complete”,
“guid”: null,
“tag”: “de84f6f0”,
“instrument_token”: “NSE_FO|61725”,
“tradingsymbol”: “NIFTY25MAY24800CE”,
“trading_symbol”: “NIFTY25MAY24800CE”,
“order_type”: “MARKET”,
“validity”: “DAY”,
“trigger_price”: 0.0,
“disclosed_quantity”: 0,
“transaction_type”: “SELL”,
“average_price”: 199.62,
“filled_quantity”: 1200,
“pending_quantity”: 0,
“status_message”: null,
“status_message_raw”: null,
“exchange_order_id”: “1600000046350021”,
“parent_order_id”: null,
“order_id”: “250527000195946”,
“variety”: “SIMPLE”,
“order_timestamp”: “2025-05-27 10:15:56”,
“exchange_timestamp”: “2025-05-27 10:15:56”,
“is_amo”: false,
“order_request_id”: “1”,
“order_ref_id”: “UDAPI-I-Q82ski4rxOqMTvJyCqOtTOI1”
},

{
“exchange”: “NFO”,
“product”: “I”,
“price”: 0.0,
“quantity”: 1650,
“status”: “complete”,
“guid”: null,
“tag”: “LA6ZzJsi”,
“instrument_token”: “NSE_FO|61725”,
“tradingsymbol”: “NIFTY25MAY24800CE”,
“trading_symbol”: “NIFTY25MAY24800CE”,
“order_type”: “MARKET”,
“validity”: “DAY”,
“trigger_price”: 0.0,
“disclosed_quantity”: 0,
“transaction_type”: “SELL”,
“average_price”: 288.53,
“filled_quantity”: 1650,
“pending_quantity”: 0,
“status_message”: null,
“status_message_raw”: null,
“exchange_order_id”: “1600000081387067”,
“parent_order_id”: null,
“order_id”: “250527000308057”,
“variety”: “SIMPLE”,
“order_timestamp”: “2025-05-27 11:17:19”,
“exchange_timestamp”: “2025-05-27 11:17:19”,
“is_amo”: false,
“order_request_id”: “1”,
“order_ref_id”: “UDAPI-I-MHbf1iBvKMivaPhdBez93bfX”
},

2

Hi @Kislay

Looking into these.

3

Hi
Today also I have orders with random tag, assigned to them.

{
    "exchange": "NFO",
    "product": "I",
    "price": 0.0,
    "quantity": 1800,
    "status": "complete",
    "guid": null,
    "tag": "XnTQFDu5DSu9jLU4_tpE",
    "instrument_token": "NSE_FO|61726",

    "tradingsymbol": "NIFTY25MAY24800PE",
    "trading_symbol": "NIFTY25MAY24800PE",
    "order_type": "MARKET",
    "validity": "DAY",
    "trigger_price": 0.0,
    "disclosed_quantity": 0,
    "transaction_type": "BUY",
    "average_price": 175.82,
    "filled_quantity": 1800,
    "pending_quantity": 0,
    "status_message": null,
    "status_message_raw": null,
    "exchange_order_id": "1600000000123386",
    "parent_order_id": null,
    "order_id": "250528000012074",
    "variety": "SIMPLE",
    "order_timestamp": "2025-05-28 09:15:09",
    "exchange_timestamp": "2025-05-28 09:15:09",
    "is_amo": false,
    "order_request_id": "1",
    "order_ref_id": "UDAPI-I-XuwbEybYap5rs1sN7J2WwYhT"
},
{
    "exchange": "NFO",
    "product": "I",
    "price": 0.0,
    "quantity": 1800,
    "status": "complete",
    "guid": null,
    "tag": "AAAAAAA84AAAAMA0CQAAAAAAAAAACwAAAAD//wAA",
    "instrument_token": "NSE_FO|61725",

    "tradingsymbol": "NIFTY25MAY24800CE",
    "trading_symbol": "NIFTY25MAY24800CE",
    "order_type": "MARKET",
    "validity": "DAY",
    "trigger_price": 0.0,
    "disclosed_quantity": 0,
    "transaction_type": "SELL",
    "average_price": 235.01,
    "filled_quantity": 1800,
    "pending_quantity": 0,
    "status_message": null,
    "status_message_raw": null,
    "exchange_order_id": "1600000006372945",
    "parent_order_id": null,
    "order_id": "250528000042122",
    "variety": "SIMPLE",
    "order_timestamp": "2025-05-28 09:21:18",
    "exchange_timestamp": "2025-05-28 09:21:18",
    "is_amo": false,
    "order_request_id": "1",
    "order_ref_id": "UDAPI-I-AYouPWYBr7H9K6WoyuTJSCWE"
},

This is serious issue.

4

Quite serious I know. We’ve found out the bug and fixing it as we speak. Shall keep you updated on this once solved @Kislay

5

Hi @MohitGolecha
Has this been fixed?

6

In process @Kislay

Should be done by next week

7

While that is being fixed, I would also like to report a related bug, if two orders are placed in quick succession, the later of the two fails sometimes with insufficient margin as reason, even when sufficient margin is present.

8

This shouldn’t be happening na. We have tons of orders coming that way and are processedsmoothly.. Let me check

9

Also, can you let me know the time difference between both orders?

10

@Kislay this should not be the case can you share the 2 orders ID so we can investigate further.

11

250528000157421 and 250528000157435

@MohitGolecha The orders are placed in parallel, so there is only a few Milli second difference.

I encountered this issue along with random tags when I started placing orders in parallel. When the orders were placed one at a time I never faced random tags issue or margin issue. So the two bugs might be related.

12

Hi @Ketan ,
Did you get a chance to look into the margin bug?