http://<servername>/sdpapi/request?OPERATION_NAME=GET_REQUESTS&TECHNICIAN_KEY=key&INPUT_DATA=<Operation><Details><parameter><name>from</name><value>0</value></parameter><parameter><name>limit</name><value>25</value></parameter><parameter><name>filterby</name><value>Open_System</value></parameter></Details></Operation>

Response

<?xml version="1.0" encoding="UTF-8" ?>

<API version="1.0">

<response>

<operation name="GET_REQUESTS">

<result><status>Failed</status><message>Error when performing required operation.</message></result></operation>

</response>

</API>

But if I reduce limit value up to 5 its showing me result

Can you please suggest me solution