Apex class throwing error that accountId is mandatory
96559
Account Required Field Missing on Lead Conversion
1413
How do I write an Apex unit test?
155270
Trigger Error in salesforce
84144
'Operation is not valid due to the current state of the object' error during postback
104049
Apex strange exception handling
2837
Why does this code throw an error when trying to create a Person account?
76570
Test Class Issue with UNKNOWN_EXCEPTION, portal account owner must have a role
108354
How to test apex classes with Pagereference?
110046
Mandatory child record when creating parent record
107530
How to tell whether a field is required or not in Apex by describe fields
134794
APEX Dataloader fail INVALID_FIELD_FOR_INSERT_UPDATE, cannot specify Id in an insert call
131864
Member '' cannot be accessed with an instance reference
20543
Throwing errors on a standard page layout using Apex!
119667
apex:inputField can only be used with sObjects
19994
What's the best way to check if person accounts are enabled via Apex Code?
88617
Help with test class for Batch Apex
102259
Custom Validation using Trigger throwing System.FinalException: SObject row does not allow errors