SAP Note 12311 - E062: Sales activity cannot be recorded for ...

Symptom:

When you enter a sales activity, a message is issued once you enter the customer number:
E062: Customer ... has partner function ...

Cause and prerequisites

Two possible causes:
1. Either the function AG is not in the partner determination
procedure assigned to the sales activity type, or
2. The partner function AG is not permitted in the account group
assigned to the customer.

Solution
Re 1. Add function AG to the partner determination procedure: Customizing:
LOGISTICS--> SALES --> FUNCTIONS--> PARTNER DETERMINATION
==> Select object SALES ACTIVITY, function "Partner determination
procedure", Execute
Select the protected procedure in the activity and enter
function AG as a required function.
Re 2. Assign function AG to the account group, in Customizing:
LOGISTICS--> SALES--> FUNCTIONS--> PARTNER DETERMINATION
==> Select object CUSTOMER, function "Partner functions",
Execute.
via menu: ENVIRONMENT -> Account group -> Role assignment

Key word: E062