the 'Content-Length' header must be modified using the appropriate property or method.

[Jedwards54]

HI, 

I'm having an issue when trying to use the 'send mail' action in the Microsoft 365 - outlook object - 

Internal : Could not execute code stage because exception thrown by code stage: The 'Content-Length' header must be modified using the appropriate property or method.
Parameter name: name

Any thoughts on how to fix this? 

Thanks, 

Jack

[Jedwards54 · Accepted solution]

SOLVED

[Michael_S]

Hey @Jedwards54 - glad you got this sorted! What was the answer in the end?

[Jedwards54 · Accepted solution]

I noticed that the standard send mail action wasn't posting any 'body' I changed this action to 'post JSON and dropped in the JSON request. A simple change but worth noting. see below