I came upon this error when I am assigning the custom object to the master standard object.
Eg. accountId derived from a query
Then I get this error.
The fix was actually easy. I just rewrote it to assign the master id on instantiating the child object.
Hope somebody finds this useful.
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This solution is very helpful and easy also. Thanks 🙂
Glad you found it helpful.
Thank you so much for this blog.Glad I found it
What if we want to update the Account__c field ??
The example is for an insert DML. For update operation as the child record already exists, updating the record relationship should work fine as is.
thanks man you save me