Recently I received a number of questions from people who were using the first self-monetization example code I created about a year ago. They received an error message when installing the app: Callback functions are not allowed.
This error happened because there is code in the install codeunit to do an outgoing HTTP call to a webservice. In the same period,…
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Outbound HTTP calls blocked in Business Central Sandbox – Kauffmann @ Dynamics 365 Business Central
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