This article captures the maximum attribute name lengths allowed in Dynamics 365 (CRM). This is a simple thing but I carry on forgetting it and it is useful to have them always in mind.
- Attribute Display Name max length = 50 characters
- Attribute Unique Name max length = 41 characters
- Attribute Description max length = 200 characters
- Attribute Form Label max length = 100 characters
See below the corresponding screenshots locating those elements: