When you run a report, you can pass parameters to it. Parameter values are received by the report in an attribute. The receiving attribute is defined as part of the report properties when the report is created.
The value of a parameter must:
Have 254 characters or less.
Contain leading zeros for numeric values.
Not contain decimals for numeric values.
Not contain separators for numeric values.
Note: When initiating a report from a server command prompt window, the entire command (including parameter) is subject to the command prompt window limit on command length.