CRM 4 codename field on Campaign entity - can't update value

Question

I am trying to update value of codename field on Campaign entity but it wont let me do. In C# code if I debug, I can see it goes through without any error and saves everything else except codename value.

On CRM form it is read only field and if I try to amend it and change value from 12345 to 12345678 for example it does not save.

Any idea what might be preventing it? When I create a new record I can add any value I like.

Answer 1

Your observations are correct: codename on Campaign can be set when creating a record but cannot be updated.

This information can be seen in the CRM SDK.

See campaign.codename in the CRM 4.0 SDK:

• Valid for create: Yes
• Valid for retrieve: Yes
• Valid for update: No