Credits/Overpayments/Prepayments dates differ depending on how individual invoice is requested from API

[timwiel]

It seems that when using the Invoices endpoint the applied credit/overpayments/credits date returned via JSON and XML is different based on how the an individual invoice is requested.

A direct invoice request returns the "allocation" date as the invoice date whereas other type of querystring request (which is what the https://github.com/XeroAPI/xero-php-oauth2 uses as it's uri request type) returns the date the "creditnote / prepayment or overpayment was originally created not allocated.

Is this on purpose for any reason?

For example:
https://api.xero.com/api.xro/2.0/invoices/4766401f-5957-4a0e-9e55-54b79bc543bb
results in the "allocations" being returned with each date being the same as the invoice date

however https://api.xero.com/api.xro/2.0/Invoices?IDs=4766401f-5957-4a0e-9e55-54b79bc543bb returns the "allocations" with their original creation date.

[SidneyAllen]

@timwiel Thank you for reporting this.

We've confirmed this is an issue with the API and a bug report has been created APIB-1814.

This can not be resolved through our OpenAPI specifications, so I'll be closing this case and updating it once the bug has been resolved.

[wobinb]

This has now been resolved at API level. The dates will now be correct no matter what format the request is in.