error in creating odata using custom function module

Hi experts,

I have created a custom function module for creating va21.

quotation is creating with the custom function module.

I have used the same function module in odata abap services,

i used the below code in gateway client url.

please check whether it is right or wrong?

/sap/opu/odata/SAP/ZODATA_QUOTATION_SRV/INPUTSet?$filter=DocType eq 'QT' and SalesOrg eq 'vks1' and DistrChan eq 'v4' and Division eq '21' and PurchNo eq 'test' and Material eq '32' and ReqQty eq '0000000000013'and CondType eq 'PR00' and PartnNumb eq '0000000022'

It is showing 200 message but it is failed to create.

Can any one suggest me how to test the service in gateway client url.

Please do the needful.

thanks and regards

pavan