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Problem

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

or

You experience bad performance

Solution

Step 1: Is it a known error message?

See Error Messages

Step 2:  Inspect the Callstack

The call stack points to the failing code, which is VERY helpful.

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The Request /Response shows also what data was exchanged between Mobile and BC.

Step 3.1: Could a third-party extension be the cause?

If you have other extensions installed, add-ons, or from your partner.

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• Go to: Extension Management
• Select an extension
• Select the three dots
• Select Uninstall 

Does the issue change?

Step 3.2: Does a third-party extension subscribe to Mobile WMS or Base -events?

Add ?page=9510 to your URL to open the "Event Subscriptions" -page.

Step 4: Has the system been updated lately

• 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?
• Has Business Central been updated?
  
  
• Have you changed how the system is set up?

Step 5: 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 6: 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
  • Debugging Cloud sandbox  
     

Step 7: Troubleshoot perfomance using Profiler

See Performance Profiler (AL Profiler)

Also, when dealing with slow performance on BC Online, consider raising a Support Case with Microsoft, directly from Business Central.

See also

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