Hello, during the Lead conversion process including the Opportunity creation we get the error in the subject line. After making all the checks on the Lead mapping area I found that:
- It only occurs if I create the Opportunity upon conversion.
- I can convert and create the oppty without error if I change the record owner.
- Only the owners with a specific custom profile can convert and create oppty.
- If I change the owner and use myself (System Administrator) I get the error too.
- I am convinced that difference is on the profile of the record owner: I compared mine and the one who can create the oppty and couldn't find any difference.
Where should I investigate in order to understand this difference? Checked all custom permissions too :-(
11 answers
Eric Praud (Activ8 Solar Energies) 
Forum Ambassador
Is there a difference in some field level security for a specific field on Opportunity?
Or maybe you have some automation that tries to update a field for some profiles only.
Not sure if it will show, but you could try to generate a debug log under your name, recreate the issue and see if anything shows in the log
