Showing results for 
Search instead for 
Did you mean: 
Frequent Visitor

Send an Email V2 String passing variable error

Hi, I'm having a strange issue passing email addresses via a variable. 


I have three flows which all use an initialise variable then apply to each to combine user Emails from a SharePoint person column into a single output seperated by semi colons for Send an Email V2 to use. 


On two flows this works fine and the same method is used to combine several other multiple choice values to ensure only on email is needed. 


on one flow however this method will not work, i keep getting the following message. 


"The 'inputs.parameters' of workflow operation 'Send_an_email_(V2)' of type 'OpenApiConnection' is not valid. Error details: Input parameter 'emailMessage/To' is required to be of type 'String/email'. The runtime value '"\;\;"' to be converted doesn't have the expected format 'string/email'."


I've checked the three flows and they are identical. 


Can anybody give me some guidance as to why one Send and Email V2 likes it but another doesn't? 



Accepted Solutions

Hello @codecheck ,

I's because of the new line you use when you're building the list of email addresses. Keep them all on the same line, just separate them by ; .

[ If I have answered your question, please Accept the post as a solution. ]
[ If you like my response, please give it a Thumbs Up. ]

[ I also blog about Power Automate solutions even for non-IT people. ]

View solution in original post

Super User
Super User

Hello @codecheck ,

the emails string in the error message seems strange, it should be just email addresses separated by semicolons, without the \ and \n. I'd check the part where you build the string with addresses for some typo.;;

[ If I have answered your question, please Accept the post as a solution. ]
[ If you like my response, please give it a Thumbs Up. ]

[ I also blog about Power Automate solutions even for non-IT people. ]

That was my first thought but i cant see any reason why the variable is different to others. 


What's odder is the input passed to send an email in this flow seems different to another. 


flow with error: 

    "host": {
    "parameters": {
        "emailMessage/Subject""Skip Defect Reported - Test Site ",
        "emailMessage/Body""<p>Hello, <br>\n<br>\nA Skip Defect has been identififed at Test Site, the Defects identified are: \nDoor Tie Back, please view the images here PageType=4&ListId=7febd4b5%2D407d%2D4bb5%2Dba3b%2Dd7b4c694b9ce&ID=5&ContentTypeID=0x0100FF9A91CEDA2D484590477FFF8122605A002440DA16E6DB6E42B51AC2C7F028C0A0>Here</a> <br>\n<br>\nThe Site has rated the severity as Amber<br>\n<br>\nThank You,<br>\n<br>\nSkip Defect Reporting Service&nbsp;</p>",
Flow that works fine:
    "host": {
        "api": {
        "connection": {
    "authentication": {
    "body": {
        "Subject""Incident Reported at Site",
        "Body""<p>A Incident has been recorded at Site, on the 19/05/2021 at 16:28 and an accident form has been sent to site.<br>\n<br>\nThe full Details of the report can be found here: LINK PageType=4&ListId=2040ca70%2Deffa%2D4d62%2Db6c9%2D0e55c949da30&ID=21&ContentTypeID=0x0100589F1A0BC0496349A1354F664727E7A900584C05D976C1974090D0B74ACA4D8835<br>\n<br>\nThank you,<br>\n<br>\nPlaace&nbsp;Accident Notification Service</p>",
Both are send an email V2, the only difference is the faulty flow was made in the last 2 months while the one that works is from the start of the year. 

Hello @codecheck ,

I's because of the new line you use when you're building the list of email addresses. Keep them all on the same line, just separate them by ; .

[ If I have answered your question, please Accept the post as a solution. ]
[ If you like my response, please give it a Thumbs Up. ]

[ I also blog about Power Automate solutions even for non-IT people. ]

thanks, that seems to work. although Powerapps Notification V2 didn't like them being passed to it that way. no issue though as an apply to each getting the managers email from the sharepoint list will work fine for that bit. 


Odd that it would work fine on other flows though. 

Helpful resources


Power Platform Connections - Episode 7 | March 30, 2023

Episode Seven of Power Platform Connections sees David Warner and Hugo Bernier talk to Dian Taylor, alongside the latest news, product reviews, and community blogs.     Use the hashtag #PowerPlatformConnects on social media for a chance to have your work featured on the show.  

Announcing | Super Users - 2023 Season 1

Super Users – 2023 Season 1    We are excited to kick off the Power Users Super User Program for 2023 - Season 1.  The Power Platform Super Users have done an amazing job in keeping the Power Platform communities helpful, accurate and responsive. We would like to send these amazing folks a big THANK YOU for their efforts.      Super User Season 1 | Contributions July 1, 2022 – December 31, 2022  Super User Season 2 | Contributions January 1, 2023 – June 30, 2023    Curious what a Super User is? Super Users are especially active community members who are eager to help others with their community questions. There are 2 Super User seasons in a year, and we monitor the community for new potential Super Users at the end of each season. Super Users are recognized in the community with both a rank name and icon next to their username, and a seasonal badge on their profile.  Power Apps  Power Automate  Power Virtual Agents  Power Pages  Pstork1*  Pstork1*  Pstork1*  OliverRodrigues  BCBuizer  Expiscornovus*  Expiscornovus*  ragavanrajan  AhmedSalih  grantjenkins  renatoromao    Mira_Ghaly*  Mira_Ghaly*      Sundeep_Malik*  Sundeep_Malik*      SudeepGhatakNZ*  SudeepGhatakNZ*      StretchFredrik*  StretchFredrik*      365-Assist*  365-Assist*      cha_cha  ekarim2020      timl  Hardesh15      iAm_ManCat  annajhaveri      SebS  Rhiassuring      LaurensM  abm      TheRobRush  Ankesh_49      WiZey  lbendlin      Nogueira1306  Kaif_Siddique      victorcp  RobElliott      dpoggemann  srduval      SBax  CFernandes      Roverandom  schwibach      Akser  CraigStewart      PowerRanger  MichaelAnnis      subsguts  David_MA      EricRegnier  edgonzales      zmansuri  GeorgiosG      ChrisPiasecki  ryule      AmDev  fchopo      phipps0218  tom_riha      theapurva  takolota     Akash17  momlo     BCLS776  Shuvam-rpa     rampprakash  ScottShearer     Rusk  ChristianAbata     cchannon  Koen5     a33ik  Heartholme     AaronKnox  okeks      Matren   David_MA     Alex_10        Jeff_Thorpe        poweractivate        Ramole        DianaBirkelbach        DavidZoon        AJ_Z        PriyankaGeethik        BrianS        StalinPonnusamy        HamidBee        CNT        Anonymous_Hippo        Anchov        KeithAtherton        alaabitar        Tolu_Victor        KRider        sperry1625        IPC_ahaas      zuurg    rubin_boer   cwebb365   Dorrinda   G1124   Gabibalaban   Manan-Malhotra   jcfDaniel   WarrenBelz   Waegemma   drrickryp   GuidoPreite    If an * is at the end of a user's name this means they are a Multi Super User, in more than one community. Please note this is not the final list, as we are pending a few acceptances.  Once they are received the list will be updated. 

Register now for the Business Applications Launch Event | Tuesday, April 4, 2023

Join us for an in-depth look into the latest updates across Microsoft Dynamics 365 and Microsoft Power Platform that are helping businesses overcome their biggest challenges today.   Find out about new features, capabilities, and best practices for connecting data to deliver exceptional customer experiences, collaborating, and creating using AI-powered capabilities, driving productivity with automation—and building towards future growth with today’s leading technology.   Microsoft leaders and experts will guide you through the full 2023 release wave 1 and how these advancements will help you: Expand visibility, reduce time, and enhance creativity in your departments and teams with unified, AI-powered capabilities.Empower your employees to focus on revenue-generating tasks while automating repetitive tasks.Connect people, data, and processes across your organization with modern collaboration tools.Innovate without limits using the latest in low-code development, including new GPT-powered capabilities.    Click Here to Register Today!    

Check out the new Power Platform Communities Front Door Experience!

We are excited to share the ‘Power Platform Communities Front Door’ experience with you!   Front Door brings together content from all the Power Platform communities into a single place for our community members, customers and low-code, no-code enthusiasts to learn, share and engage with peers, advocates, community program managers and our product team members. There are a host of features and new capabilities now available on Power Platform Communities Front Door to make content more discoverable for all power product community users which includes ForumsUser GroupsEventsCommunity highlightsCommunity by numbersLinks to all communities Users can see top discussions from across all the Power Platform communities and easily navigate to the latest or trending posts for further interaction. Additionally, they can filter to individual products as well.   Users can filter and browse the user group events from all power platform products with feature parity to existing community user group experience and added filtering capabilities.     Users can now explore user groups on the Power Platform Front Door landing page with capability to view all products in Power Platform.      Explore Power Platform Communities Front Door today. Visit Power Platform Community Front door to easily navigate to the different product communities, view a roll up of user groups, events and forums.

Microsoft Power Platform Conference | Registration Open | Oct. 3-5 2023

We are so excited to see you for the Microsoft Power Platform Conference in Las Vegas October 3-5 2023! But first, let's take a look back at some fun moments and the best community in tech from MPPC 2022 in Orlando, Florida.   Featuring guest speakers such as Charles Lamanna, Heather Cook, Julie Strauss, Nirav Shah, Ryan Cunningham, Sangya Singh, Stephen Siciliano, Hugo Bernier and many more.   Register today:   

Users online (4,469)