Message no. F5155
No amount authorization for customer/vendor line items has been specified in company code TPL1 for the user group to which you are assigned.
Provided that you are not explicitly assigned to a user group, the amount authorization to the group blank (" ") is valid.
If you entered the correct company code, initiate the maintenance of tables T043 (user groups) and/or T043T (company code authorizations).
My checking in the system
1. OBA3, OBA4, OB57 - all t codes checked and configured .
2. Vendor master also checked and tolerance assigned to that .
I don't know what is the actual problem with this .