Error: No authorization for maintaining sales documents in PIPR 20 PT when simulating a sales order

Hi experts.

Actually we´re integrating sales order and pricing beetween C4C an ERP.

We did the external pricing fine tunning configuration and also the correct code list mapping, but now when i create a sales order and click on "Simulate" button, i get this error message:

(QASCLNT200) No authorization for maintaining sales documents in PIPR 20 PT

QASCLNT200: my ERP system

PIPR 20 PT: my sales area

please help me to solve this issue

BR