When importing customizations you may encounter an error: The attribute map is invalid.
To fix this error and move on with your import:
- Look at the following attributes in Lead, Account and Contact:
- In your source attributes for Leads, the field size may not match the field size in your targets Account and Contact: nvarchar (200) versus nvarchar (50)
- Modify either your source or your target attributes so the field sizes all match
- You may need to re-do the mapping in the 1:N Relationship for Lead:Account and Lead:Contact
- Publish changes, and import customizations again.