so something like
{
"requests": [
{
"entityTypes": [
"message"
],
"query": {
"queryString": "received>=03/01/2020 AND received<=03/31/2020"
}
}
]
}
KQL also has a between operation ".." which should still work but they have dropped (or maybe just omitted) it from the doco examples eg
{
"requests": [
{
"entityTypes": [
"message"
],
"query": {
"queryString": "received:05/01/2020..05/31/2020"
}
}
]
}