Trying to follow the sample here https://docs.sendgrid.com/ui/sending-email/how-to-send-an-email-with-dynamic-templates, I'm sending the following JSON to this url: "https://api.sendgrid.com/v3/mail/send" (and I have sent a simple email before using the same code, now I want to try a template with substitution):
{
"personalizations": [
{
"subject": "Test template email from SendGrid",
"to": [
{
"name": "Neal Walters",
"email": "myRecipient@example.com"
}
],
"dynamic_template_data": {
"Applicant_Name": "John Doe",
"Send_Date": "December 30, 2022"
}
}
],
"from": {
"name": "NealWalters(SendGrid)",
"email": "mySender@example.com"
},
"template_id": "bcab1b12-d922-4cdd-b6f5-9f39b16d9823"
}
and getting this cryptic error:
{"errors":[{"message":"Cannot use dynamic template data with a legacy template
ID","field":"personalizations.0.dynamic_template_data","help":null}]}
I have no idea what is a dynamic nor a legacy template. I copied one of Send Grid's demo templates (Nonprofit Newsletter Email Template) and added some of my own tags.
When I used the template name ("NealDemo Duplicate Nonprofit Newsletter Email Template") instead of the GUID (which I got from the URL when I was editing the template), the message was similar but added this to the above error - which leaves me with the question of can I use the template name or not? It's unclear what a "template_id" is on how to find it, if it is not the name of the template as I saved it.
{"message":"The template_id must be a valid GUID,
you provided 'NealDemo Duplicate Nonprofit Newsletter Email Template'.","field":"template_id","help":"http://sendgrid.
com/docs/API_Reference/Web_API_v3/Mail/errors.html#message.template_id"},{"message":"Unless a valid template_id is
provided, the content parameter is required. There must be at least one defined content block. We typically suggest
both text/plain and text/html blocks are included, but only one block is required.","field":"content","help":"http://s
endgrid.com/docs/API_Reference/Web_API_v3/Mail/errors.html#message.content"}]}
Disappointed these are not listed on this errors page: https://docs.sendgrid.com/api-reference/mail-send/errors
Are there two template editors?
I used this one: https://mc.sendgrid.com/design-library/your-designs/bcab1b12-d922-4cdd-b6f5-9f39b16d9823/editor
I didn't see any other guid/id for the template, so I tried "bcab1b12-d922-4cdd-b6f5-9f39b16d9823" from the URL.
But now I see there is also a dynamic template editor??? https://mc.sendgrid.com/dynamic-templates As mentioned below, I copied one of your demo templates, which already had some substitution variables in at the bottom ({{Sender_Name}} {{Sender_Address}}, {{Sender_City}}, {{Sender_State}} {{Sender_Zip}}). I just added two of my own at the top.
I have referenced this: Getting "Cannot use dynamic template data with a legacy template" with non-legacy template
The saga continues. I went to this page: https://mc.sendgrid.com/dynamic-templates and was able to copy over my previous template, so perhaps it was a legacy template. It now gave it a clearly labeled template-id of: d-a35d9d48ce304588bbebf7828811b473 (which looks like a "d-" followed by a guid).
I ran that through the API call, which resulted in no immediate errors, but then I got this email:
Usually when I can't figure things out, it is either the documentation is lacking, or I was speed-reading it.
When I first setup my account, I apparently clicked a link that took me to SendGrid's main site, and I signed up for an account there. Apparently this step was totally unnecessary (also their site requires a 2FA, separate from Azure). So I built my templates on their site, which was under a different account then the one I created in Azure. Thus I was able to send emails with the token from Azure, but any time I tried to send a template from my second account, of course, it was not recognized with my Azure account.
You can create templates inside of Azure, from the links shown below:
NOTE 1 - their "pretty" designs are still under the Legacy Templates, and "Dynamic Templates" seem to be the newer preferred way to go. You can build a "legacy template", then apparently copy it's HTML over to a "dynamic template".
NOTE 2 - I only solved this by opening a support ticket with SendGrid.