Can a PM be created with an asset attribute as a field?

When creating the PM the There's a procedure step that has an Attribute and Attribute descriptor id but after the work order is created it tells me the attribute is not available for the asset

Code:

POST: https://az-am-ent-f5.corrigo.com/api/v1/cmd/Workorder/Create

{
"Command": {
"WorkOrder": {
"TimeZone": 35,
"Items": [
{
"Asset": {
"Id": "3730840"
},
"Task": {
"Id": "29911"
},
"Comment": "Meijer Emergency Generator Bi-Weekly Run Test "
}
],
"Procedures": [
{
"ProcedureTemplate": {
"Id":"1296"
},
"Asset": {"Id":3730840 },
"Steps": [ {"ProcedureTemplateStep": {"Id": 6581},"TypeId":"Field","FieldDescriptor":{"Id":"101"},"AttrDescriptor":{"Id":""},"DataTypeId":"10","Index":"3", "IsRequired":"True","ConditionType":"Regular","YIdx":"0","ZIdx":"0","ConcurrencyId":"13"},{"ProcedureTemplateStep": {"Id": 6582},"TypeId":"Field","FieldDescriptor":{"Id":"98"},"AttrDescriptor":{"Id":""},"DataTypeId":"10","Index":"7", "IsRequired":"True","ConditionType":"Regular","YIdx":"0","ZIdx":"0","ConcurrencyId":"12"},{"ProcedureTemplateStep": {"Id": 6583},"TypeId":"Field","FieldDescriptor":{"Id":"103"},"AttrDescriptor":{"Id":""},"DataTypeId":"10","Index":"8", "IsRequired":"True","ConditionType":"Regular","YIdx":"0","ZIdx":"0","ConcurrencyId":"12"},{"ProcedureTemplateStep": {"Id": 6584},"TypeId":"Field","FieldDescriptor":{"Id":"101"},"AttrDescriptor":{"Id":""},"DataTypeId":"10","Index":"10", "IsRequired":"True","ConditionType":"Regular","YIdx":"0","ZIdx":"0","ConcurrencyId":"15"},{"ProcedureTemplateStep": {"Id": 6586},"TypeId":"Field","FieldDescriptor":{"Id":"96"},"AttrDescriptor":{"Id":""},"DataTypeId":"10","Index":"12", "IsRequired":"True","ConditionType":"Regular","YIdx":"0","ZIdx":"0","ConcurrencyId":"14"},{"ProcedureTemplateStep": {"Id": 6587},"TypeId":"Field","FieldDescriptor":{"Id":"96"},"AttrDescriptor":{"Id":""},"DataTypeId":"10","Index":"13", "IsRequired":"True","ConditionType":"Regular","YIdx":"0","ZIdx":"0","ConcurrencyId":"14"},{"ProcedureTemplateStep": {"Id": 6588},"TypeId":"Field","FieldDescriptor":{"Id":"98"},"AttrDescriptor":{"Id":""},"DataTypeId":"10","Index":"14", "IsRequired":"True","ConditionType":"Regular","YIdx":"0","ZIdx":"0","ConcurrencyId":"14"},{"ProcedureTemplateStep": {"Id": 6589},"TypeId":"Field","FieldDescriptor":{"Id":"101"},"AttrDescriptor":{"Id":""},"DataTypeId":"10","Index":"17", "IsRequired":"True","ConditionType":"Regular","YIdx":"0","ZIdx":"0","ConcurrencyId":"22"},{"ProcedureTemplateStep": {"Id": 6590},"TypeId":"Field","FieldDescriptor":{"Id":"98"},"AttrDescriptor":{"Id":""},"DataTypeId":"10","Index":"15", "IsRequired":"True","ConditionType":"Regular","YIdx":"0","ZIdx":"0","ConcurrencyId":"14"},{"ProcedureTemplateStep": {"Id": 6591},"TypeId":"Field","FieldDescriptor":{"Id":"98"},"AttrDescriptor":{"Id":""},"DataTypeId":"10","Index":"9", "IsRequired":"True","ConditionType":"Regular","YIdx":"0","ZIdx":"0","ConcurrencyId":"12"},{"ProcedureTemplateStep": {"Id": 6592},"TypeId":"Field","FieldDescriptor":{"Id":"98"},"AttrDescriptor":{"Id":""},"DataTypeId":"10","Index":"18", "IsRequired":"True","ConditionType":"Regular","YIdx":"0","ZIdx":"0","ConcurrencyId":"22"},{"ProcedureTemplateStep": {"Id": 6593},"TypeId":"Field","FieldDescriptor":{"Id":"98"},"AttrDescriptor":{"Id":""},"DataTypeId":"10","Index":"4", "IsRequired":"True","ConditionType":"Regular","YIdx":"0","ZIdx":"0","ConcurrencyId":"9"},{"ProcedureTemplateStep": {"Id": 6594},"TypeId":"Field","FieldDescriptor":{"Id":"98"},"AttrDescriptor":{"Id":""},"DataTypeId":"10","Index":"5", "IsRequired":"True","ConditionType":"Regular","YIdx":"0","ZIdx":"0","ConcurrencyId":"9"},{"ProcedureTemplateStep": {"Id": 6595},"TypeId":"Field","FieldDescriptor":{"Id":"98"},"AttrDescriptor":{"Id":""},"DataTypeId":"10","Index":"6", "IsRequired":"True","ConditionType":"Regular","YIdx":"0","ZIdx":"0","ConcurrencyId":"9"},{"ProcedureTemplateStep": {"Id": 6596},"TypeId":"Field","FieldDescriptor":{"Id":"98"},"AttrDescriptor":{"Id":""},"DataTypeId":"10","Index":"23", "IsRequired":"True","ConditionType":"Regular","YIdx":"0","ZIdx":"0","ConcurrencyId":"13"},{"ProcedureTemplateStep": {"Id": 6597},"TypeId":"Field","FieldDescriptor":{"Id":"101"},"AttrDescriptor":{"Id":""},"DataTypeId":"10","Index":"24", "IsRequired":"True","ConditionType":"Regular","YIdx":"0","ZIdx":"0","ConcurrencyId":"25"},{"ProcedureTemplateStep": {"Id": 6598},"TypeId":"Field","FieldDescriptor":{"Id":"101"},"AttrDescriptor":{"Id":""},"DataTypeId":"10","Index":"19", "IsRequired":"True","ConditionType":"Regular","YIdx":"0","ZIdx":"0","ConcurrencyId":"17"},{"ProcedureTemplateStep": {"Id": 6599},"TypeId":"Field","FieldDescriptor":{"Id":"101"},"AttrDescriptor":{"Id":""},"DataTypeId":"10","Index":"25", "IsRequired":"True","ConditionType":"Regular","YIdx":"0","ZIdx":"0","ConcurrencyId":"13"},{"ProcedureTemplateStep": {"Id": 6600},"TypeId":"Field","FieldDescriptor":{"Id":"101"},"AttrDescriptor":{"Id":""},"DataTypeId":"10","Index":"26", "IsRequired":"True","ConditionType":"Regular","YIdx":"0","ZIdx":"0","ConcurrencyId":"15"},{"ProcedureTemplateStep": {"Id": 6602},"TypeId":"Text","FieldDescriptor":{"Id":""},"AttrDescriptor":{"Id":""},"DataTypeId":"10","Index":"29", "IsRequired":"True","ConditionType":"Regular","YIdx":"0","ZIdx":"0","ConcurrencyId":"17"},{"ProcedureTemplateStep": {"Id": 6603},"TypeId":"Field","FieldDescriptor":{"Id":"103"},"AttrDescriptor":{"Id":""},"DataTypeId":"10","Index":"30", "IsRequired":"True","ConditionType":"Regular","YIdx":"0","ZIdx":"0","ConcurrencyId":"15"},{"ProcedureTemplateStep": {"Id": 6604},"TypeId":"Field","FieldDescriptor":{"Id":"103"},"AttrDescriptor":{"Id":""},"DataTypeId":"10","Index":"31", "IsRequired":"True","ConditionType":"Regular","YIdx":"0","ZIdx":"0","ConcurrencyId":"15"},{"ProcedureTemplateStep": {"Id": 6605},"TypeId":"Text","FieldDescriptor":{"Id":""},"AttrDescriptor":{"Id":""},"DataTypeId":"10","Index":"2", "IsRequired":"True","ConditionType":"Regular","YIdx":"0","ZIdx":"0","ConcurrencyId":"12"},{"ProcedureTemplateStep": {"Id": 6606},"TypeId":"Text","FieldDescriptor":{"Id":""},"AttrDescriptor":{"Id":""},"DataTypeId":"10","Index":"1", "IsRequired":"True","ConditionType":"Regular","YIdx":"0","ZIdx":"0","ConcurrencyId":"17"},{"ProcedureTemplateStep": {"Id": 6607},"TypeId":"Field","FieldDescriptor":{"Id":"97"},"AttrDescriptor":{"Id":""},"DataTypeId":"10","Index":"16", "IsRequired":"True","ConditionType":"Regular","YIdx":"0","ZIdx":"0","ConcurrencyId":"12"},{"ProcedureTemplateStep": {"Id": 6608},"TypeId":"Field","FieldDescriptor":{"Id":"98"},"AttrDescriptor":{"Id":""},"DataTypeId":"10","Index":"20", "IsRequired":"True","ConditionType":"Regular","YIdx":"0","ZIdx":"0","ConcurrencyId":"9"},{"ProcedureTemplateStep": {"Id": 6609},"TypeId":"Field","FieldDescriptor":{"Id":"98"},"AttrDescriptor":{"Id":""},"DataTypeId":"10","Index":"21", "IsRequired":"True","ConditionType":"Regular","YIdx":"0","ZIdx":"0","ConcurrencyId":"11"},{"ProcedureTemplateStep": {"Id": 6610},"TypeId":"Field","FieldDescriptor":{"Id":"98"},"AttrDescriptor":{"Id":""},"DataTypeId":"10","Index":"22", "IsRequired":"True","ConditionType":"Regular","YIdx":"0","ZIdx":"0","ConcurrencyId":"9"},{"ProcedureTemplateStep": {"Id": 6611},"TypeId":"Field","FieldDescriptor":{"Id":"130"},"AttrDescriptor":{"Id":""},"DataTypeId":"10","Index":"11", "IsRequired":"True","ConditionType":"Regular","YIdx":"0","ZIdx":"0","ConcurrencyId":"16"},{"ProcedureTemplateStep": {"Id": 36575},"TypeId":"Attribute","FieldDescriptor":{"Id":""},"AttrDescriptor":{"Id":"10272"},"DataTypeId":"10","Index":"27", "IsRequired":"True","ConditionType":"Regular","YIdx":"0","ZIdx":"0","ConcurrencyId":"14"},{"ProcedureTemplateStep": {"Id": 36876},"TypeId":"Field","FieldDescriptor":{"Id":"116"},"AttrDescriptor":{"Id":""},"DataTypeId":"10","Index":"28", "IsRequired":"True","ConditionType":"Regular","YIdx":"0","ZIdx":"0","ConcurrencyId":"12"}] }],"Specialty": {
"Id": "10034"
},
"Priority": {
"Id": "4"
},
"EquipmentWorkedOn": {"Id": 3730840 },
"ContactName": " ",
"ContactAddress": {
"AddrTypeId": "Contact",
"Address": " "
},
"TypeCategory": 2,
"RequestorContact": {
"Id": 3
},
"WorkZone": {
"Id": "460"
},
"PM/RM Schedule": {
"Id":18094
},
"SubType": {
"Id": 257
},
"Customer": {
"Id": "20903"
}
},
"ComputeAssignment": true,
"ComputeSchedule": true
}
}

Work order screen shot:

Thanks for the assistance