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You get a runtime error on mobile with an error message from Business Central.
Solution
Step 1: Is it a known error message?
See Error Messages
Step 2: Inspect the Callstack
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The Request and Response -XML also tells you what data is being exchanged between Mobile and BC.
Step 3:
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Could a third-party extension be the cause?
If you have other extensions installed, add-ons, or from your partner.
Try uninstalling them temporarily Consider doing this in a sandbox (step 6) to avoid disrupting the business.
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