API issue: list invoices endpoint no longer returns custom fields

API issue: list invoices endpoint no longer returns custom fields

Hi, could anyone please advise. It looks as though the Zoho Books API has been changed, and now does not reflect the documentation.

We use the list invoices endpoint (https://www.zoho.com/invoice/api/v3/invoices/#list-invoices) to return a list of invoices, including the 'custom_fields' attribute as per the docs.

At some point this morning, the API has stopped including this attribute. We know that the data for these fields is set for the invoices in question, because when requested individually the custom fields are included. However for our usage of the API, to request each invoice individually puts us way above the requests per minute limit and we're rate limited.

Urgently we are trying to find out how to get this functionality reinstated. Unfortunately trying by telephone has been unsuccessful as we are redirected to voicemail every time.

Thanks in advance for any advice.

    Nederlandse Hulpbronnen