Update Customer Billing Settings

curl -X PUT "https://secure.fusebill.com/v1/customerbillingsetting" \
	-H "Content-Type: application/json" \
	-H "Authorization: Basic {APIKey}" \
	-d "{id:{customerId},invoiceDay:null,term:'Net0',interval:'Monthly',autoCollect:null,rechargeType:'',rechargeThresholdAmount:null,rechargeTargetAmount:null,statusOnThreshold:null,autoPostDraftInvoice:null,hasPaymentMethod:false,customerGracePeriod:null,gracePeriodExtension:null,standingPoNumber:null,billingPeriodConfigurations:[],acquisitionCost:0,showZeroDollarCharges:null,taxExempt:false,useCustomerBillingAddress:true,taxExemptCode:null,avalaraUsageType:null,vatIdentificationNumber:null,customerServiceStartOption:'',rollUpTaxes:null,rollUpDiscounts:null,trackedItemDisplay:null,customerBillingStatementSetting:{option:null,type:null,interval:null,day:null,month:null,trackedItemDisplay:null}}"

//Json data
string jsonData ="{id:{{customerId},invoiceDay:null,term:'Net0',interval:'Monthly',autoCollect:null,rechargeType:'',rechargeThresholdAmount:null,rechargeTargetAmount:null,statusOnThreshold:null,autoPostDraftInvoice:null,hasPaymentMethod:false,customerGracePeriod:null,gracePeriodExtension:null,standingPoNumber:null,billingPeriodConfigurations:[],acquisitionCost:0,showZeroDollarCharges:null,taxExempt:false,useCustomerBillingAddress:true,taxExemptCode:null,avalaraUsageType:null,vatIdentificationNumber:null,customerServiceStartOption:'',rollUpTaxes:null,rollUpDiscounts:null,trackedItemDisplay:null,customerBillingStatementSetting:{option:null,type:null,interval:null,day:null,month:null,trackedItemDisplay:null}}";
//Setup API key
string apiKey = "{APIKey}";
//Configure URI
WebRequest request = WebRequest.Create("HTTPS://secure.fusebill.com/v1/customerbillingsetting");
//Add Content type
request.ContentType = "application/json";
//Add Api key authorization
request.Headers.Add(HttpRequestHeader.Authorization, "Basic "+apiKey);
//Set request method
request.Method = "PUT";
//Add the json data to request
using (var streamWriter = new StreamWriter(request.GetRequestStream()))
{
  streamWriter.Write(jsonData);
  streamWriter.Flush();
  streamWriter.Close();
}
//Perform the request
var httpResponse = (HttpWebResponse)request.GetResponse();
//Record the response from our request
var result = "";
using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))
{
  result = streamReader.ReadToEnd();
}

#Import library JSON
import json
#Import library Requests
import requests
#Pass in a dictionary to the Headers parameter
headers = {'Authorization' : 'Basic {APIKey}', 'Content-Type' : 'application/json'}
#Pass in a dictionary to the Payload parameter
payload = {"invoiceDay": None,"term": "Net10","interval": "Monthly","autoCollect": None,"rechargeType": "","rechargeThresholdAmount": 

None,"rechargeTargetAmount": None,"statusOnThreshold": None,"autoPostDraftInvoice": None,"hasPaymentMethod": "false","customerGracePeriod": 

None,"gracePeriodExtension": None,"standingPoNumber": None,"billingPeriodConfigurations": [],"acquisitionCost": 0,"showZeroDollarCharges": None,"taxExempt": 

"false","useCustomerBillingAddress": None,"taxExemptCode": None,"avalaraUsageType": None,"vatIdentificationNumber": None,"customerServiceStartOption": 

"","rollUpTaxes": None,"rollUpDiscounts": None,"trackedItemDisplay": None,"customerBillingStatementSetting": {"option": None,"type": None,"interval": 

None,"day": None,"month": None,"trackedItemDisplay": None},"defaultPaymentMethodId": None,"id": {id},"uri": None}
#Pass in your URI, Payload and Headers
r = requests.put('https://secure.fusebill.com/v1/customerBillingSetting/{id}', data=json.dumps(payload), headers=headers)
print(r.content)

{
    "term": "Net0",
    "interval": "Monthly",
    "autoCollect": true,
    "rechargeType": "",
    "rechargeThresholdAmount": 0.00,
    "rechargeTargetAmount": 0.00,
    "statusOnThreshold": false,
    "autoPostDraftInvoice": null,
    "hasPaymentMethod": true,
    "customerGracePeriod": null,
    "gracePeriodExtension": null,
    "customerAutoCancel": null,
    "defaultCancelOption": "",
    "standingPoNumber": null,
    "billingPeriodConfigurations": [
        {
            "type": "SpecifiedDate",
            "rule": "SingleInvoice",
            "interval": "Monthly",
            "day": 4,
            "month": null
        }
    ],
    "acquisitionCost": 0.00,
    "showZeroDollarCharges": null,
    "taxExempt": false,
    "useCustomerBillingAddress": null,
    "taxExemptCode": null,
    "avalaraUsageType": null,
    "vatIdentificationNumber": null,
    "customerServiceStartOption": "",
    "rollUpTaxes": null,
    "rollUpDiscounts": null,
    "rollUpPdfsByPlanProduct": false,
    "rollUpPdfsDisplayName": true,
    "rollUpPdfsDisplayDescription": true,
    "rollUpPdfsDisplayAllUnitPrices": true,
    "pdfInvoiceEmailAttachmentOption": "Details",
    "trackedItemDisplay": null,
    "customerBillingStatementSetting": {
        "option": "Disabled",
        "type": null,
        "interval": null,
        "day": null,
        "month": null,
        "trackedItemDisplay": null,
        "statementActivityType": null
    },
    "defaultPaymentMethodId": 215715,
    "postReadyChargesOnRenew": null,
    "id": 654144,
    "uri": "https://secure.fusebill.com/v1/customerbillingsetting/654144"
}

{
    "invoiceDay": null,
    "term": "Net30",
    "interval": "Monthly",
    "autoCollect": true,
    "autoCollectSettingType": "OutstandingBalance",
    "dunningExempt":false,
    "rechargeType": "",
    "rechargeThresholdAmount": null,
    "rechargeTargetAmount": null,
    "statusOnThreshold": null,
    "autoPostDraftInvoice": null,
    "hasPaymentMethod": true,
    "customerGracePeriod": null,
    "gracePeriodExtension": null,
    "standingPoNumber": null,
    "billingPeriodConfigurations": [
        {
            "type": "CustomerActivation",
            "rule": "OneInvoicePerDay",
            "interval": "Monthly",
            "day": null,
            "month": null
        },
        {
            "type": "FirstSubscriptionActivation",
            "rule": "OneInvoicePerDay",
            "interval": "Yearly",
            "day": null,
            "month": null
        }
    ],
    "acquisitionCost": 0,
    "showZeroDollarCharges": null,
    "taxExempt": false,
    "useCustomerBillingAddress": null,
    "taxExemptCode": null,
    "avalaraUsageType": null,
    "vatIdentificationNumber": null,
    "customerServiceStartOption": "",
    "rollUpTaxes": null,
    "rollUpDiscounts": null,
    "trackedItemDisplay": null,
    "customerBillingStatementSetting": {
        "option": null,
        "type": null,
        "interval": null,
        "day": null,
        "month": null,
        "trackedItemDisplay": null
    },
    "defaultPaymentMethodId": 142291,
    "id": 342780,
    "uri": "https://secure.fusebill.com/v1/customerbillingsetting/342780"
}

{
    "ErrorId": 0,
    "HttpStatusCode": 400,
    "Errors": [
        {
            "Key": "Api Error",
            "Value": "Cannot set Invoice Day on Customer when Customer is Active."
        }
    ]
}