Hi @giangnguyen ,
In fact, this is the expected result. The checklist returned by the Planner Task API does not seem to exist as an array. The item is returned as multiple Objects, so the property value cannot be directly referenced.
I originally wanted to parse the response using Parse JSON, but there seems to be no suitable schema to use.
Maybe I need more time to do research.
If there is only one item in the checklist, you may refer to the following method:
Schema:
{
"type": "object",
"properties": {
"19739": {
"type": "object",
"properties": {
"@@odata.type": {
"type": "string"
},
"isChecked": {
"type": "boolean"
},
"title": {
"type": "string"
},
"orderHint": {
"type": "string"
},
"lastModifiedDateTime": {
"type": "string"
},
"lastModifiedBy": {
"type": "object",
"properties": {
"user": {
"type": "object",
"properties": {
"displayName": {},
"id": {
"type": "string"
}
}
}
}
}
}
}
}
}

Best Regards,