Azure billing schedule fails with error: Cannot retrieve billing data, Response code 400: Method failed - Support and Troubleshooting

Azure billing schedule fails with error: Cannot retrieve billing data, Response code 400: Method failed Description  Symptoms Azure billing schedule works only for most recent months.

It doesn't work for previous months before certain point of time.

For example, when running the schedule for a month in 2019, it works.

However when running it for any month in 2018, error is thrown.

Sample error message:

Cannot retrieve billing data from https://consumption.azure.com/v3/enrollments/xxxxx/usagedetails/download?billingPeriod=201812.&#10;Response code 400: Method failed: (/v3/enrollments/xxxxx/usagedetails/download) with code: 400

Cause According to Azure billing API doc: https://docs.microsoft.com/en-us/azure/billing/billing-enterprise-api

Code 400 means: Invalid params – Date ranges, EA numbers etc.

Thus the cause is the data for previous month is not available in Azure for your account. Please login the EA portal and verify. https://ea.azure.com