Message SAP /BEV1/SR_MESSAGE400 - You are not authorized for sales organization &1 and distrib. channel &2

Diagnosis
The sales organization and the distribution channel of the salesdocument were checked with regard to the following authorizations:
- Create
- Change
- Display.
You are not authorized to create, change or display the selected salesdocument.
Therefore, processing is terminated.

Procedure
If you need to access this sales organization and distribution channel,ask your system administrator for the authorization required for theauthorization object V_VBAK_VKO, fields ACTVT, VKORG, VTWEG.