Multi attachment email - Error

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Posted on by Ludwig Reinhard

Hi,

I tried following this Flow: https://preview.flow.microsoft.com/en-us/blog/multiple-attachments-single-email/

And also had a look at a couple of other discussions in this forum.

Yet, when I try to replicate things, I get an error saying that

{

"status": 400,

"message": "Parameter 'Attachment Content' cannot be null or empty.\r\nclientRequestId: 2960f4c2-d0ff-439d-ab24-2baa52760795",

"source": "office365-we.azconn-we.p.azurewebsites.net"

}

Attached are the files that I stored on a SharePoint document library and that I want to add all as attachment.

The files are XML and PDF documents.

My flow looks as follows:

I even put an additional compose step before sending the email just to check that the content is not empty.

What is going wrong here?

Any help would be appreciated.

Many thanks,

Ludwig

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ScottShearer 25,290 Most Valuable Professional on at

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@lreinhard7

In your append to variable array action, try removing the double quotes around the filename with extension. Please let me know if that works for you.

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Ludwig Reinhard on at

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Hello Scott,
Just tested that but still get the same 400 error message...
Best regards,
Ludwig

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yashag2255 24,769 Super User 2024 Season 1 on at

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Hey @lreinhard7

In place of Content you should have ContentBytes.

Hope this Helps!

If this reply has answered your question or solved your issue, please mark this question as answered. Answered questions helps users in the future who may have the same issue or question quickly find a resolution via search. If you liked my response, please consider giving it a thumbs up. THANKS!

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RezaDorrani 12,145 on at

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Hi @lreinhard7

replace "Content" with "ContentBytes"

Regards,
Reza Dorrani

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly

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ScottShearer 25,290 Most Valuable Professional on at

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@lreinhard7

The following worked for me:

Change Content to ContentBytes.

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Ludwig Reinhard on at

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Hi,
Many thanks for the hint with the ContentByte term this kind of resolved one error.
Yet, now I receive the error:
status": 400,
"message": "No input parameters provided. Please provide required input parameters 'To', 'Subject' and 'Body'.\r\nclientRequestId: 4b1e9ced-1d72-4232-856a-3bf7d8e95e36",
"source": "office365-we.azconn-we.p.azurewebsites.net"
This is strange because I entered the to, subject and body fields...
Interesting 😞
Best regards,
Ludwig

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RezaDorrani 12,145 on at

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Hi @lreinhard7

have you used ContentByte or ContentBytes

the s is required

next try using expression

"ContentBytes": base64(filecontentdynamiccontent)

the bold part is expression

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Ludwig Reinhard on at

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Hello RezaDorrani,
That is amazing. The base64 expression did the job!
Many thanks for that.
Best regards,
Ludwig

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Ludwig Reinhard on at

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Hi,
After making some changes to my flow to make it run fast I run into another issue where I need some help.
The problem that I currently have is that either no attachment is created or that an attachment file is created that I cannot open.
Here are some of the things I tested:
Option 1: No attachment created
Option 2: Same as Option 1

Option 3: Error message that the attachment name cannot be null

Option 4: Error unable to read message or attachment

Option 5: Attachment file created but it cannot be opened

Any help would be highly appreciated.

Many thanks,
Ludwig

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yashag2255 24,769 Super User 2024 Season 1 on at

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Hey @lreinhard7

You can refer to the below screenshot. You need to have the Name while creating the array itself. And do not create that again in the send email action

The display name is because my attachments are from sharepoint. You can have the custom filename there and ensure you have the right extension along with that.

Hope this Helps!

If this reply has answered your question or solved your issue, please mark this question as answered. Answered questions helps users in the future who may have the same issue or question quickly find a resolution via search. If you liked my response, please consider giving it a thumbs up. THANKS!

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