cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
Burak_Oezfalci
Frequent Visitor

Checking null value for CDS field

Hi all, currently I am working on a Flow which exports Accounts from Dynamics 365/Common Data Service and adds them to an external system.

 

I have created a custom string field in Dynamics 365/CDS for the Accounts Entity.

What I want to do is exporting an Account to an external system, after the export I want to update the Account Record and add the ID of that account in the external system.

 

The first steps in the flow are the following ones:

1.) When a record is selected is the trigger action for this flow.

2.) Condition which checks if the custom string field is empty/null

 

I do have problems with the second step, especially when the selected account has not been exported already and therefore has null as the value of the custom field.

In this circumstances the Flow is showing me the following error https://support.microsoft.com/en-us/help/4540228/there-is-a-problem-with-the-flow-s-trigger

If the account has been already exported, then it has a value for the custom string field and the flow is running correctly.

1 ACCEPTED SOLUTION

Accepted Solutions

Hi @Burak_Oezfalci ,

 

From the select record action which you were doing previously do select the variable value and compare it with null , no trim or length functionality is required. Just ensure that you are typing null using expression and not direct input. 

 

Thanks

View solution in original post

14 REPLIES 14
ManishJain
Solution Sage
Solution Sage

Hi @Burak_Oezfalci ,

 

Can you please share what are you using to check the empty/null value for custom field.

 

Thanks

Hi @ManishJain , i tried different approaches but none of them was successful.

 

I needed to add the step with the variable because i could not use the Flow functions like empty or length, i had no dynamic content available after selecting the function.

 

1.) Using a variable and checking if it is empty.

Burak_Oezfalci_0-1604301794298.png

 

2.) Using a variable and checking if it is null.

Burak_Oezfalci_1-1604302257175.png

 

3.) Checking directly if the custom string field is empty

I Could not post more images, if you need them just tell me.

 

When I select a record, which has not been exported and therefore has no value for the field, the Flow crashes when it starts.

When I select a record, which has already been exported and therefore has a value for the field, the Flow runs successfully.

 

 

 

Hi @Burak_Oezfalci ,

 

When the flow runs upon selecting record what value does the field shows, if not you can click on download the output to see the value . Can you please share the output. Alternatively even if you are not able to view the field value then do Get Record action , select your entity and provide the entity id from previous (select record action) . This will help you troubleshoot what is happening . Also please check if the customization that you have made is published. 

 

Thanks

abm
Super User
Super User

Hi @Burak_Oezfalci 

 

Could you try to modify the below step where you mapping the variable to use expression trim() and length(). Change the condition to greater than zero.

 

trim(length('your variable'))

 

image.png

 

Thanks



Did I answer your question? Mark my post as a solution!

If you liked my response, please consider giving it a thumbs up


Proud to be a Flownaut!

Learn more from my blog
Power Automate Video Tutorials

@ManishJain 

It seems like I found a solution, it is not nice but it is working.

 

Sorry for the german labels.

I added a new step which gets the record from Common Data Service.

 

Burak_Oezfalci_0-1604324875294.png

Although my custom field was not shown under dynamic content after entering the empty function.

I edited the value manually into the function, and it works.

Burak_Oezfalci_1-1604324970449.png

 

Still a strange behaviour, don't know why the Flow acts like that.

 

Hi @Burak_Oezfalci ,

 

Now that your functionality works can you please try doing the same with select record variable and see if it is working. 

 

 

Thanks

@abmI tried your approach but the same error occurs.

In Dynamics 365 it shows me the following error.

Burak_Oezfalci_1-1604325524969.png

Which means refresh the page or try again later.
When i scroll down, at the end it says "Invalid type. Expected String but got Null.."

 

The data for the custom field looks like this, for accounts that have not been exported the custom field has the value 'null'.

Burak_Oezfalci_0-1604325427215.png

 

I do think that the flow crashes when it tries to set up the string variable, it has null and tries to add it to the string variable

@ManishJainI am not sure if I understood you correctly ? Could you please explain in detail, what you want me to do ?

 

The Flow currently looks like this.
I am using the Common Data Service Trigger, when a record is selected.

After that I am getting the record with the get record action.

Burak_Oezfalci_0-1604325792138.png

 

Hi @Burak_Oezfalci ,

 

From the select record action which you were doing previously do select the variable value and compare it with null , no trim or length functionality is required. Just ensure that you are typing null using expression and not direct input. 

 

Thanks

@ManishJain 

I hope I understand you correctly.

This is approach is also working, I use the ID from the Select/Get record action (Datensatz abrufen) and not from the trigger action.

Burak_Oezfalci_0-1604326463959.png

 

What I don't unterstand is why the following approach is not working:

I removed the additional getRecord Action, so that the billwerkId is based on trigger.

Burak_Oezfalci_0-1604326709941.png

 

Hi @Burak_Oezfalci ,

 

Can you please add compose action to see what value you are getting in that field from select record.

 

Thanks

You mean like that ?

Burak_Oezfalci_1-1604328896355.png

 

It results in the same error behaviour.

Unfortuanelty I can't look in the run, cause no run is shown.

This is the Info I get in Dynamics 365 when I try to start the flow.

 

Burak_Oezfalci_0-1604328824989.png

 

The two options you mentioned did not work either, i will go on with the approach which has been working where i added the additional getRecord Action.

 

Thanks for your help @ManishJain.

Helpful resources

Announcements

Power Platform Connections Ep 15 | L. Baybutt | Thursday, 1 June 2023

Episode Fifteen of Power Platform Connections sees David Warner and Hugo Bernier talk to Microsoft MVP Lewis Baybutt aka Low Code Lewis, alongside the latest news and community blogs.   Use the hashtag #PowerPlatformConnects on social media for a chance to have your work featured on the show.        Action requested: Feel free to provide feedback on how we can make our community more inclusive and diverse.  This episode premiers live on our YouTube at 12pm PST on Thursday 1st June 2023.  Video series available at Power Platform Community YouTube channel.    Upcoming events:  European Power Platform conference – Jun. 20-22nd - Dublin Microsoft Power Platform Conference – Oct. 3-5th - Las Vegas  Join our Communities:  Power Apps Community Power Automate Community Power Virtual Agents Community Power Pages Community  If you’d like to hear from a specific community member in an upcoming recording and/or have specific questions for the Power Platform Connections team, please let us know. We will do our best to address all your requests or questions.  Action requested: Feel free to provide feedback on how we can make our community more inclusive and diverse.  This episode premiers live on our YouTube at 12pm PST on Thursday 1st June 2023.  Video series available at Power Platform Community YouTube channel.    Upcoming events:  European Power Platform conference – Jun. 20-22nd - Dublin Microsoft Power Platform Conference – Oct. 3-5th - Las Vegas  Join our Communities:  Power Apps Community Power Automate Community Power Virtual Agents Community Power Pages Community  If you’d like to hear from a specific community member in an upcoming recording and/or have specific questions for the Power Platform Connections team, please let us know. We will do our best to address all your requests or questions. 

May 2023 Community Newsletter and Upcoming Events

Welcome to our May 2023 Community Newsletter, where we'll be highlighting the latest news, releases, upcoming events, and the great work of our members inside the Biz Apps communities. If you're new to this LinkedIn group, be sure to subscribe here in the News & Announcements to stay up to date with the latest news from our ever-growing membership network who "changed the way they thought about code".         LATEST NEWS "Mondays at Microsoft" LIVE on LinkedIn - 8am PST - Monday 15th May  - Grab your Monday morning coffee and come join Principal Program Managers Heather Cook and Karuana Gatimu for the premiere episode of "Mondays at Microsoft"! This show will kick off the launch of the new Microsoft Community LinkedIn channel and cover a whole host of hot topics from across the #PowerPlatform, #ModernWork, #Dynamics365, #AI, and everything in-between. Just click the image below to register and come join the team LIVE on Monday 15th May 2023 at 8am PST. Hope to see you there!     Executive Keynote | Microsoft Customer Success Day CVP for Business Applications & Platform, Charles Lamanna, shares the latest #BusinessApplications product enhancements and updates to help customers achieve their business outcomes.         S01E13 Power Platform Connections - 12pm PST - Thursday 11th May Episode Thirteen of Power Platform Connections sees Hugo Bernier take a deep dive into the mind of co-host David Warner II, alongside the reviewing the great work of Dennis Goedegebuure, Keith Atherton, Michael Megel, Cat Schneider, and more. Click below to subscribe and get notified, with David and Hugo LIVE in the YouTube chat from 12pm PST. And use the hashtag #PowerPlatformConnects on social media for a chance to have your work featured on the show.         UPCOMING EVENTS   European Power Platform Conference - early bird ticket sale ends! The European Power Platform Conference early bird ticket sale ends on Friday 12th May 2023! #EPPC23 brings together the Microsoft Power Platform Communities for three days of unrivaled days in-person learning, connections and inspiration, featuring three inspirational keynotes, six expert full-day tutorials, and over eighty-five specialist sessions, with guest speakers including April Dunnam, Dona Sarkar, Ilya Fainberg, Janet Robb, Daniel Laskewitz, Rui Santos, Jens Christian Schrøder, Marco Rocca, and many more. Deep dive into the latest product advancements as you hear from some of the brightest minds in the #PowerApps space. Click here to book your ticket today and save!      DynamicMinds Conference - Slovenia - 22-24th May 2023 It's not long now until the DynamicsMinds Conference, which takes place in Slovenia on 22nd - 24th May, 2023 - where brilliant minds meet, mingle & share! This great Power Platform and Dynamics 365 Conference features a whole host of amazing speakers, including the likes of Georg Glantschnig, Dona Sarkar, Tommy Skaue, Monique Hayward, Aleksandar Totovic, Rachel Profitt, Aurélien CLERE, Ana Inés Urrutia de Souza, Luca Pellegrini, Bostjan Golob, Shannon Mullins, Elena Baeva, Ivan Ficko, Guro Faller, Vivian Voss, Andrew Bibby, Tricia Sinclair, Roger Gilchrist, Sara Lagerquist, Steve Mordue, and many more. Click here: DynamicsMinds Conference for more info on what is sure an amazing community conference covering all aspects of Power Platform and beyond.    Days of Knowledge Conference in Denmark - 1-2nd June 2023 Check out 'Days of Knowledge', a Directions 4 Partners conference on 1st-2nd June in Odense, Denmark, which focuses on educating employees, sharing knowledge and upgrading Business Central professionals. This fantastic two-day conference offers a combination of training sessions and workshops - all with Business Central and related products as the main topic. There's a great list of industry experts sharing their knowledge, including Iona V., Bert Verbeek, Liza Juhlin, Douglas Romão, Carolina Edvinsson, Kim Dalsgaard Christensen, Inga Sartauskaite, Peik Bech-Andersen, Shannon Mullins, James Crowter, Mona Borksted Nielsen, Renato Fajdiga, Vivian Voss, Sven Noomen, Paulien Buskens, Andri Már Helgason, Kayleen Hannigan, Freddy Kristiansen, Signe Agerbo, Luc van Vugt, and many more. If you want to meet industry experts, gain an advantage in the SMB-market, and acquire new knowledge about Microsoft Dynamics Business Central, click here Days of Knowledge Conference in Denmark to buy your ticket today!   COMMUNITY HIGHLIGHTS Check out our top Super and Community Users reaching new levels! These hardworking members are posting, answering questions, kudos, and providing top solutions in their communities.   Power Apps:  Super Users: @WarrenBelz, @LaurensM  @BCBuizer  Community Users:  @Amik@ @mmollet, @Cr1t    Power Automate:  Super Users: @Expiscornovus , @grantjenkins, @abm  Community Users: @Nived_Nambiar, @ManishSolanki    Power Virtual Agents:  Super Users: @Pstork1, @Expiscornovus  Community Users: @JoseA, @fernandosilva, @angerfire1213    Power Pages: Super Users: @ragavanrajan  Community Users: @Fubar, @Madhankumar_L,@gospa  LATEST COMMUNITY BLOG ARTICLES  Power Apps Community Blog  Power Automate Community Blog  Power Virtual Agents Community Blog  Power Pages Community Blog  Check out 'Using the Community' for more helpful tips and information:  Power Apps , Power Automate, Power Virtual Agents, Power Pages 

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   metsshan    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. 

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: https://www.powerplatformconf.com/   

Users online (5,217)