Hi, you should have used the /search/symbol endpoint to find the corresponding symbols, the symbols found by the search match: 29M.AX and 3PL.AX:

[
{
“symbol”: “29M.AX”,
“name”: “29Metals Ltd”,
“exchange”: “ASX”
},
{
“symbol”: “3PL.AX”,
“name”: “3P Learning Ltd”,
“exchange”: “ASX”
}
]

Perhaps you have misinformed the dates here is a an eg. of query result:

[
{
“Date”: “2022-04-21 10:28:00”,
“Open”: 3.285,
“High”: 3.285,
“Low”: 3.26,
“Close”: 3.27,
“Volume”: 53510
},
{
“Date”: “2022-04-21 10:27:00”,
“Open”: 3.28,
“High”: 3.3,
“Low”: 3.28,
“Close”: 3.29,
“Volume”: 43844
},
{
“Date”: “2022-04-21 10:26:00”,
“Open”: 3.28,
“High”: 3.28,
“Low”: 3.28,
“Close”: 3.28,
“Volume”: 1020
},
{
“Date”: “2022-04-21 10:25:00”,
“Open”: 3.285,
“High”: 3.29,
“Low”: 3.28,
“Close”: 3.29,
“Volume”: 9671
},
{
“Date”: “2022-04-21 10:24:00”,
“Open”: 3.29,
“High”: 3.29,
“Low”: 3.29,
“Close”: 3.29,
“Volume”: 8921
},
{
“Date”: “2022-04-21 10:23:00”,
“Open”: 3.31,
“High”: 3.31,
“Low”: 3.295,
“Close”: 3.295,
“Volume”: 8967
},
…
]