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Posted on by NL-20091313-0

When using the Send a survey connector with power automate it can pull the survey and project id without issue. But when it gets to the email template it just errors out with a parsing infinite value error and I can't figure out why it is getting that error and keep failing the flow.

{   "ErrorMessage": "System.Exception: Error retrieving email templatesNewtonsoft.Json.JsonReaderException: Error parsing Infinity value. Path '', line 1, position 2.\r\n
        at Newtonsoft.Json.JsonTextReader.ParseNumberPositiveInfinity(ReadType readType, Boolean matched)\r\n
        at Newtonsoft.Json.JsonTextReader.ParseNumberPositiveInfinity(ReadType readType)\r\n
        at Newtonsoft.Json.JsonTextReader.ParseValue()\r\n
        at Newtonsoft.Json.JsonReader.ReadForType(JsonContract contract, Boolean hasConverter)\r\n
        at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)\r\n
        at Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType)\r\n
        at Newtonsoft.Json.JsonConvert.DeserializeObject(String value, Type type, JsonSerializerSettings settings)\r\n
        at Microsoft.Forms.Pro.ApiFacade.Helpers.EmailTemplateHelper.RetrieveV2EmailTemplatesAsync(HttpRequest req, String formId, String userId, String requestId) in D:\\a\\_work\\1\\s\\Microsoft.FormsPro\\Microsoft.Forms.Pro.ApiFacade\\Helpers\\EmailTemplateHelper.cs:line 532\r\n
        at Microsoft.Forms.Pro.ApiFacade.Helpers.EmailTemplateHelper.RetrieveV2TemplateDataAsync(HttpRequestContext req, String formId, String templateId, String locale, String defaultLanguage, Boolean isCustomTemplate) in D:\\a\\_work\\1\\s\\Microsoft.FormsPro\\Microsoft.Forms.Pro.ApiFacade\\Helpers\\EmailTemplateHelper.cs:line 390\r\n
        at Microsoft.Forms.Pro.ApiFacade.Helpers.EmailTemplateHelper.RetrieveV2TemplateDataAsync(HttpRequestContext req, String formId, String templateId, String locale, String defaultLanguage, Boolean isCustomTemplate) in D:\\a\\_work\\1\\s\\Microsoft.FormsPro\\Microsoft.Forms.Pro.ApiFacade\\Helpers\\EmailTemplateHelper.cs:line 453\r\n
        at Microsoft.Forms.Pro.ApiFacade.RequestHandlers.SendEmailsForFlowRequestHandler.GetEmailTemplateFromCDS(HttpRequestContext requestContext, FlowSendMessageRequest flowMessageRequest) in D:\\a\\_work\\1\\s\\Microsoft.FormsPro\\Microsoft.Forms.Pro.ApiFacade\\RequestHandlers\\SendEmailsForFlowRequestHandler.cs:line 713\r\n
        at Microsoft.Forms.Pro.ApiFacade.RequestHandlers.SendEmailsForFlowRequestHandler.ParseRequestData(HttpRequestContext requestContext) in D:\\a\\_work\\1\\s\\Microsoft.FormsPro\\Microsoft.Forms.Pro.ApiFacade\\RequestHandlers\\SendEmailsForFlowRequestHandler.cs:line 499\r\n
        at Microsoft.Forms.Pro.ApiFacade.RequestHandlers.SendEmailsForFlowRequestHandler.DoValidate(HttpRequestContext requestContext) in D:\\a\\_work\\1\\s\\Microsoft.FormsPro\\Microsoft.Forms.Pro.ApiFacade\\RequestHandlers\\SendEmailsForFlowRequestHandler.cs:line 246" }
 {

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Daivat Vartak (v-9d... 7,829 Super User 2025 Season 2 on at

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Hello NL-20091313-0,

You're encountering a frustrating error with the "Send a survey" connector in Power Automate, specifically the "Error parsing Infinity value" during email template retrieval. This error points to a problem with the JSON response from the Forms Pro (Customer Voice) API, where an "Infinity" value is being returned, which is invalid JSON.

Here's a breakdown of the problem and troubleshooting steps:

Understanding the Error:

"Error parsing Infinity value": This error indicates that the JSON parser in the Power Automate connector is encountering an "Infinity" value, which is not a valid JSON number.

Forms Pro API Issue: This error suggests that the Forms Pro (Customer Voice) API is returning invalid JSON when retrieving email templates.

Potential Causes:

Data corruption in the email template.

A bug in the Forms Pro API.

A problem with the locale or language settings.

A problem with a calculated field in the email template.

Troubleshooting Steps:

Check Email Template Content:

Carefully review the content of your email template in Customer Voice.

Look for any unusual characters, calculated fields, or dynamic content that might be causing the issue.

Especially look for any numerical fields that might be empty, and therefore returning an infinite value.

Try creating a very basic email template with minimal content to see if the error persists.

Test with Different Email Templates:

Create a new, simple email template in Customer Voice and try using that in your Power Automate flow.

If the new template works, the problem is likely with the original template.

This will help you isolate the issue.

Locale and Language Settings:

Verify the locale and language settings in both Customer Voice and your Power Automate flow.

Inconsistent settings can sometimes lead to unexpected errors.

Ensure that the language settings used in the email template are supported.

Review Calculated Fields:

If your email template uses calculated fields or dynamic content, carefully review the formulas.

Ensure that the formulas are not producing any invalid numerical values.

Especially any division by zero, or other actions that can create an infinite value.

Recreate the Email Template:

If you suspect data corruption, try recreating the email template from scratch.

This can sometimes resolve issues that are difficult to track down.

Check Customer Voice Service Health:

Check the Microsoft 365 Service Health dashboard for any reported issues with Customer Voice.

It's possible that the API is experiencing a temporary outage or bug.

Contact Microsoft Support:

If none of the above steps resolve the issue, contact Microsoft Support.

Provide them with the error message and details of your Power Automate flow and email template.

This is very likely an issue with the Customer voice API.

Power Automate Error Handling:

As a temporary workaround, implement error handling within your Power Automate flow.

Use the "Configure run after" option to handle the failed "Send a survey" action.

You could then send a notification email or log the error for further investigation.

Key Recommendations:

Start by carefully reviewing the email template content.

Test with different email templates to isolate the issue.

Check the locale and language settings.

Contact Microsoft support.

By following these steps, you should be able to identify the root cause of the error and resolve the issue.

If my answer was helpful, please click Like, and if it solved your problem, please mark it as verified to help other community members find more. If you have further questions, please feel free to contact me.

My response was crafted with AI assistance and tailored to provide detailed and actionable guidance for your Microsoft Dynamics 365 query.

Regards,

Daivat Vartak

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VA-17021242-0 4 on at

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Hi @NL-20091313-0 , I have been able to solve this by making a Service Principal the owner of the Power Automate flow, instead of an individual user.

Hope this helps!

Power Automate Fl...

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