SAP Message WXP691 - User &4 has no authorization to run interface &3

Diagnosis
You want to use interface &V3&. You do not, however, have authorizationfor this.

System Response
The transaction could not be run.

Procedure
Contact your system administrator for authorization to use interfaceV3 for planning scenario/planning step v1/v2. the relevantauthorization object is W_WXP_INT (activityExecute).