Living In Tech

Recently, I had an issue that I needed to overcome.  The problem was that the Dynamics 365 instance I was working on, was integrated with multiple other systems with some long running external processes and possible old data in the UI when a record is open, overriding what the value was set to from the external processes.  What was happening is that on create of a contact, we can have a NULL e-mail.  This is normal behavior.  Our external process would be running and update the NULL e-mail field while the record was open in the UI.  Because the UI hadn't been refreshed and the user made other changes, the e-mail would be blanked out (NULL).  To make sure that the field once populated (yes, this is a business requirement) could not be cleared, I wrote a small pre-operation plugin that does the following: Check's the plugin context to see if we are trying to update the emailaddress1 or emailaddress2.   If we are trying to update either email address.  Than we check to see if