By default in Oracle Applications R12, users are not able to access Forms directly via the following url:
http://hostname:port/forms/frmservlet
The following error would pop out:
APP-FND-01542: This Applications Server is not authorized to access this database.
NOTE: Accessing Forms directly is not supported and should only be used for diagnostic and troubleshooting purposes.
1. Edit $CONTEXT_FILE which is located in $INST_TOP/appl/admin
2. Change <appserverid_authentication oa_var=”s_appserverid_authentication”>SECURE</appserverid_authentication>
to
<appserverid_authentication oa_var=”s_appserverid_authentication”>OFF</appserverid_authentication>
3. Run $INST_TOP/admin/scripts/adautocfg.sh to instantiate the changes
4. Users are now able to access Forms directly.