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I can't log in from Mobile Device

I can't log in from Mobile Device

Owned by Johannes Sebastian Nielsen
Last updated: May 19, 2025 by Anders Østergaard Bertelsen

Problem

I cannot log in to MobileWMS from a mobile device; an error message is shown.

Contents

 

Troubleshooting connection

Step 1 - Network

Step 2 - Test access using browser on mobile

Test the connection to the Web-Service by entering the URL in a browser on the mobile device

 

You should see a login screen

  1. Log in

  2. You see a WSDL like below = Success: ✅ Try logging on from mobile

  3. You see an Error message = Failure: ❌ Go to the "Known Error Messages" section

image-20250404-171536.png
A success WSDL response

 

 

Common Setup Issues

  1. If mobile devices are using Android OS,ensure that NTLM is enabled on the NAV service-tier, see: NTLM Authentication - Support Knowledge Base - Tasklet Factory Docs

  2. The NAV SOAP Service Tier network Port must be open for the mobile devices to accces (default port 7047 but verify exact number in NAV!) - also, remember that even though a port is not blocked on the NAV server itself, the mobile devices can be connected to a "less secure" WiFi, where almost everything is blocked by default, so ensure free line of communication from mobile device to NAV server. 

  3. Disable any Software firewall on the Server (Note: should only be done for test purposes - after connection has been established, only specific port(s) used by mobile devices should be opened in firewall!)

    1. This includes Windows Firewall.

  4. If you are using a server name in the soap URL (i.e. https://mynavserver:5588) then DNS name resolution from WiFI to NAV server network must be available and working. If not, you can try substituting the server name with the IP address of the server (i.e. https://192.168.1.1:5588)

  5. Verify that the user is created in NAV both as a Mobile User and that the user is added to a Mobile Group (see installation guide https://university.taskletfactory.com for help on how to do this.)

  6. The server is setup to use NTLMv2 which is not supported by the standard configuration of Mobile WMS, enable this on the start.cfg as follows:

 

 

Known error messages

Find the error message and solution below and make sure you try the troubleshooting steps bellow

See also: Error Messages if you are running Business Central.

The username, password and domain combination is invalid

Solutions

  • Missing NTLM authentication 

    • Activate NTLM on the NAV Service Tier


  • Incorrect login credentials

    • Type the correct Username/Password 

    • Consider whether Domain should be empty

 

The user "domain\user" could not be found as a valid mobile user

Solution

See Mobile Users (2/10)

  • This user can access the web service. But is a Mobile User.

    1. Insert the user on the Page "Mobile Users"

    2. Include the user in a Mobile Group on the page "Mobile Groups"

"An error occurred while sending the request Error: NameResolutionFailure" / "No such host is known"

Solution

Specific for Android 10/11 devices;

Solution

  • Private DNS is set to On/Automatic on the device, which conflicts with the network setup on your location.

    • Go to Settings > Network & Internet > Advanced > Private DNS > set to Off 

 

Unable to connect to the remote server  No connection could be made because the target machine actively refused it

Solution

 

Internal Server Error: Details: Service "CompanyName/Codeunit/MobileDocumentService" was not found!

Solution

  • Your Business Central user does not have the correct Permission Set assigned

 

“Profile update failed. Error details: Forbidden”

Solution

  • Make sure you do not have a Microsoft Azure Application Gateway that blocks the traffic between the device and the endpoint.

 

Sorry, the current permissions prevented the action. (Codeunit, MOB WS Dispatcher Execute: )

Solution

  1. You are missing Permission Sets for the user.
    See User Permissions (3/10)


  2. Check the On-Prem license includes both these modules:

    • 6181280 - Tasklet Factory Mobile Base

    • 6181290 - Tasklet Factory Mobile WMS

 

“Connection timed out”

The server (URL shown) did not respond.

image-20241119-120232.png

Solution

 

Operation was canceled

image-20250509-073353.png

Solution

  • The network might be restricted so it cannot reach authentication services from Entra/Azure

    • Open up all internet access for the network and see if it changes; after they can restrict back to the needed services. (Potentially microsoft.services)

 

 

Object reference not set to an instance of an object.

Solution

  • Close and re-open the Mobile WMS -app

 

  • You have an invalid setup of "Mobile Language" and "Mobile Messages" in NAV/BC

    • See Installation Guide 

      • or

    • Create the Mobile Language: "ENU"

    • Select "Create message"

    • Assign the language to your "Mobile Users" 


  • You are using AAD authentication and have an error in start.cfg - See AAD section 

“Getting reference data failed. Server response: Microsoft.Dynamics.Nav.Runtime.NavXmlCData variable not initialized.”

Solutions

  • You have an invalid setup of "Mobile Groups"

    • See Installation Guide

    • Go to "Mobile Groups" and add your users

 

“An error occurred while sending the request Error: ConnrectFailure (Connection refused)”

Solution

  • The service tier is not running on the server

    • Start it

    • Go to the Connection Troubleshooting section

 

This page isn't working HTTP ERROR 401

Solution

  • You are connecting to a HTTPS endpoint

  • You are using a device running Android 4.4 

    • Set "allowSelfSignedCertificates" in start.cfg

 

“Error when Deserializing the response”

Details:
Name cannot begin with the ' ' charactor hexadecimal value 0xA0. Line 1, position 6

Solution

  • You are using an older version of Mobile WMS where the object Codeunit 99999 ANSI <-> ASCII converter is faulty Make the following change

 

 

On my hosting platform "User Name" does not match "Windows User Name"

Solution

Some providers (i.e. 1ClickFactory) offers to change the "User Name" to match the "Full Name" rather than the "Windows User Name"
Currently Mobile WMS requires that the (NAV) "User Name" and "Windows User Name" fully match (excluding domain).

Have your provider change this.

  • User name should be 

    • Windows User name
      or

    • The full Email-address (Only 1ClickFactory)


  • Use "Full Name" for the actual persons name.

 

“Error: TrustFailure (A call to SSPI failed, see inner exception"


Solution

This means that the SSL certificate might have expired.

  • Check whether it has expired and If it has expired, you will need to generate a valid certificate, apply it, and restart the service tier. 

 

Azure Active Directory (AAD) authentication

Bad Request

This could be the result of the Redirect URI being incorrectly set to "Web"

Set up Azure Active Directory (AAD) authentication

“The reason phrase must not contain new-line characters”

Solution

 

 

“The reply URI specified in the request does not match the reply URIs configured for the application”
or
”No reply address is registered for the application.”

Message: AADSTS50011 or AADSTS500113

Solution

This is likely a misconfiguration with Azure Active Directory authentication

 

The application '...' (Mobile WMS) has not been authorized in the tenant

Message: AADSTS90099

Solution

 

“Chain Validation Failed” When Trying to Login

Getting Error When Trying to Login

Problem: 

Getting the error 'Chain Validation Failed' when trying to login. 

Solution: 

Make sure the date and time on the device is setup correctly. 

Mobile WMS keeps stopping

The Mobile WMS Version is too old and does not support Azure AD.

Solution

  • Upgrade Mobile WMS (minimum 1.5.0)

 

“Object reference not set to an instance of an object”

Solution

  • There is a format problem in Start.cfg

    • The <endpoint> element should encapsulate the <azureConfiguration> element.

 

“No such host is known”

Solution

  • Validate the Web-service is accessible from mobile browser

 

“Internal server error” / “The username, password and domain combination is invalid”

 

“Hostname nor servername provided, or not known”

  • Validate the Web-service is accessible from mobile browser

 

image-20241119-120536.png