ERP Integrations REST Service payload(retain other external forecast designators para) not working

Hi,

Currently we are using ERP Integrations REST Service to import data collection zip to scp cloud. we want to included parameter (retain other external forecast designators) rest api. with payload option not working. if i submit manually ESS job(Load Planning Data from file) . it working fine.
please help me why it is not working with payload.

Payload details:

{
"OperationName":"importBulkData",
"DocumentContent":"",
"ContentType":"zip",
"FileName":"EbsToSCPCloudExtract_11",
"DocumentAccount":"scm$/planningDataLoader$/import$",
"JobName":"/oracle/apps/ess/scm/advancedPlanning/collection/configuration,CSVController",
"ParameterList":"xx,1,#NULL,#NULL,#NULL,xx,3,0,#NULL,1,2,0,0"
}