Hi @Claudio65 ,
Yes , you could try to call the graph api.
{
"message": {
"subject": "Meet for lunch?",
"body": {
"contentType": "Text",
"content": "The new cafeteria is open."
},
"toRecipients": [
{
"emailAddress": {
"address": "<your email>"
}
}
],
"singleValueExtendedProperties": [
{
"id": "Binary {00062008-0000-0000-c000-000000000046} Id 0x8520",
"value": "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"
}
]}
}
In my payload ,the value is the out of box 'Yes/No' options.
You can create custom value based on protocol but it's a bit complex.
Documents - https://learn.microsoft.com/en-us/openspecs/exchange_server_protocols/ms-oxprops/e11cc753-cecf-4fdc-bec7-23304d12388a
https://learn.microsoft.com/en-us/openspecs/exchange_server_protocols/ms-oxomsg/89a70cdb-28ca-4d63-9deb-6d8c15c2cb47?redirectedfrom=MSDN
https://learn.microsoft.com/en-us/graph/api/resources/singlevaluelegacyextendedproperty?view=graph-rest-1.0
Blog - https://stackoverflow.com/questions/68667907/send-exchange-email-with-voting-buttons-using-ms-exchange-graph-api-java-sdk/68668010#68668010
Besides, if you want to simplify it , you can send an email first with custom vote values and catch its encoded value in flow.
Api -
https://graph.microsoft.com/v1.0/me/messages/<your email message id>?$expand=singleValueExtendedProperties($filter=id eq 'Binary {00062008-0000-0000-C000-000000000046} Id 0x00008520')
Finally, If you don't want to call the flow from canvas, you could create a custom connector in it.
Best Regards,
Wearsky
