Google Express - Orderinvoices: createchargeinvoice - magento2

Question

I am integrating Google Express with Magento but the Create charge invoices API is failing for me. I tried to create the invoice from the "Try this API" option of Google merchant but it's throwing the following error:
{
"error": {
"errors": [
{
"domain": "content.ContentErrorDomain",
"reason": "invalid_transition",
"message": "The requested order is not supported by orderinvoices service"
}
],
"code": 400,
"message": "The requested order is not supported by orderinvoices service"
}
}
createchargeinvoice API doc: https://developers.google.com/shopping-content/v2/reference/v2/orderinvoices/createchargeinvoice
My request body:
{
"invoiceId": "invoice1",
"operationId": "charge1",
"shipmentGroupId": "shipmentgroup1",
"lineItemInvoices": [
{
"productId": "online:en:US:d3k3245",
"shipmentUnitIds": [
"2"
],
"unitInvoice": {
"unitPricePretax": {
"value": "140",
"currency": "USD"
},
"unitPriceTaxes": [
{
"taxType": "sales",
"taxAmount": {
"value": "14",
"currency": "USD"
}
}
],
"promotions": [
{
"promotionId": "111",
"promotionAmount": {
"tax": {
"currency": "USD",
"value": "0"
},
"pretax": {
"currency": "USD",
"value": "0"
}
}
}
],
"additionalCharges": [
{
"additionalChargeAmount": {
"pretax": {
"currency": "USD",
"value": "0"
},
"tax": {
"currency": "USD",
"value": "0"
}
},
"additionalChargePromotions": [
{
"promotionAmount": {
"pretax": {
"currency": "USD",
"value": "0"
},
"tax": {
"currency": "USD",
"value": "0"
}
},
"promotionId": "111"
}
],
"type": "shipping"
}
]
}
}
],
"invoiceSummary": {
"productTotal": {
"pretax": {
"value": "561.20",
"currency": "USD"
},
"tax": {
"value": "55.98",
"currency": "USD"
}
},
"additionalChargeSummaries": [
{
"totalAmount": {
"pretax": {
"value": "561.20",
"currency": "USD"
},
"tax": {
"value": "55.98",
"currency": "USD"
}
},
"type": "shipping"
}
],
"promotionSummaries": [
{
"promotionAmount": {
"pretax": {
"value": "561.20",
"currency": "USD"
},
"tax": {
"value": "55.98",
"currency": "USD"
}
},
"promotionId": "111"
}
],
"merchantBalance": {
"pretax": {
"value": "561.20",
"currency": "USD"
},
"tax": {
"value": "55.98",
"currency": "USD"
}
},
"customerBalance": {
"pretax": {
"value": "561.20",
"currency": "USD"
},
"tax": {
"value": "55.98",
"currency": "USD"
}
}
}
}
Has anyone faced this issue?

Answer 1

As per the google document (that you've shared), there are around 40 "Required" fields for the request body. In the current shared request body, you've less than half of the required fields.
Required fields:
invoiceId
operationId
shipmentGroupId
lineItemInvoices[]
lineItemInvoices[].shipmentUnitIds[]
lineItemInvoices[].unitInvoice
lineItemInvoices[].unitInvoice.unitPricePretax
lineItemInvoices[].unitInvoice.unitPriceTaxes[].taxType
lineItemInvoices[].unitInvoice.unitPriceTaxes[].taxAmount
lineItemInvoices[].unitInvoice.promotions[].promotionId
lineItemInvoices[].unitInvoice.promotions[].promotionAmount
lineItemInvoices[].unitInvoice.promotions[].promotionAmount.pretax
lineItemInvoices[].unitInvoice.promotions[].promotionAmount.tax
lineItemInvoices[].unitInvoice.additionalCharges[].type
lineItemInvoices[].unitInvoice.additionalCharges[].additionalChargeAmount
lineItemInvoices[].unitInvoice.additionalCharges[].additionalChargeAmount.pretax
lineItemInvoices[].unitInvoice.additionalCharges[].additionalChargeAmount.tax
lineItemInvoices[].unitInvoice.additionalCharges[].additionalChargePromotions[].promotionId
lineItemInvoices[].unitInvoice.additionalCharges[].additionalChargePromotions[].promotionAmount
lineItemInvoices[].unitInvoice.additionalCharges[].additionalChargePromotions[].promotionAmount.pretax
lineItemInvoices[].unitInvoice.additionalCharges[].additionalChargePromotions[].promotionAmount.tax
invoiceSummary
invoiceSummary.productTotal
invoiceSummary.productTotal.pretax
invoiceSummary.productTotal.tax
invoiceSummary.additionalChargeSummaries[].type
invoiceSummary.additionalChargeSummaries[].totalAmount
invoiceSummary.additionalChargeSummaries[].totalAmount.pretax
invoiceSummary.additionalChargeSummaries[].totalAmount.tax
invoiceSummary.promotionSummaries[].promotionId
invoiceSummary.promotionSummaries[].promotionAmount
invoiceSummary.promotionSummaries[].promotionAmount.pretax
invoiceSummary.promotionSummaries[].promotionAmount.tax
invoiceSummary.merchantBalance.pretax
invoiceSummary.merchantBalance.tax
invoiceSummary.customerBalance.pretax
invoiceSummary.customerBalance.tax
invoiceSummary.googleBalance.pretax
invoiceSummary.googleBalance.tax