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Problem

You get a runtime error on mobile with an error message from Business Central.

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Step 2: Inspect the Callstack and "Mobile Document Queue"

See View Request and Response XML and Error Call Stack

The callstack points to the code where the Error happens.

Note: This This code is not necessarily the source of the error - but it is still valuable information that we need to know.

The call stack is included in the XML Response which is found in the Mobile Document Queue. See How-to: Inspect Request Response XML and Error Call Stack  

Note: Tasklet support might also be able to see a limited Callstack using "Telemetry".

Step 3: Has the system been updated lately?

• Have you changed setups?
• Have you changed any extension code?
  
  
• Has Mobile WMS extension been updated?
  • Has the area been changed in recent releases? See Release Notes (Business Central)
  Have you changed any extension code?
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• Has Business Central been updated?
  Have you changed setups?
  • Search BC Release Notes for the error message 

  Step 4.1:

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  Identify and Uninstall third-party extensions including Partner customization

  Partners extend Mobile WMS with their own code. Do you have other extensions installed?

  Try uninstalling them temporarily  temporarily.

  Consider doing this in a sandbox (step 6) to avoid disrupting the business.

  • Go to: Extension Management
  • Select an extension
  • Select the three dots
  • Select Uninstall
  • Does the issue change?

  Step 4.2:

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  Extensions can affect the system through event subscribers,

  Check for any  

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  Use "Code Coverage" to identify Partner customization

  Go to the "Code Coverage" -page.

  1. Select "Start"
  2. Provoke the Error/Issue
  3. Select "Stop"
  4. Inspect the result for non-base object IDs e.g. 50100 
     
     Note: Mobile WMS objects are numbered 6181000-6182250, so ignore them

  Step 4.3: Use "Event Subscriptions" to identify Partner customization

  Go to the "Event Subscriptions" -page by :

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  adding ?page=9510 to your URL

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  .

  Example: https://businesscentral.dynamics.com/TenantID/SandboxOrProd/?page=9510

  Example with filters: https://businesscentral.dynamics.com/TenantID/SandboxOrProd/?page=9510&filter='Publisher Object ID' IS '6181000..6182250' AND 'Subscriber Codeunit ID' IS '<6181000|>6182250'

  Please note that the filtered view displays only subscribers to Mobile WMS events. However, a request may also trigger other partner subscriber functions that are linked to standard Business Central events, such as posting events or database triggers related to standard BC tables.

  Step 5: Do you have the correct User Permissions?

  See User Permissions (3/10)

  Step 6: Is it isolated to one order or any order?

  • Is it a single document that cannot be processed?
  • Can you reproduce the issue by creating new documents? (Using a sandbox, step 3)

  Step

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  7: Reproduce the issue in a "Sandbox" (copy of the production)

  With a sandbox you can:

  • Avoid disrupting the customer's business
  • Change data to check whether the issue changes
  • Disable/Enable extensions and check if issue changes
  • Debug code, see Debugging Cloud sandbox   

  Step

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  8: Troubleshoot perfomance using Profiler

  See Performance Profiler (AL Profiler)

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