I wouldn’t bet on that. Front-end API used to be a thing but it was discontinued.
Your alternative is to use the backend API.
While querying the backend API is not as efficient as querying the webpage table, you can however use a two stage query:
- Get the index of customers from
.../api/{business UUID}/ec37c11e-2b67-49c6-8a58-6eccb7dd75ee
and use that as a lookup table for customer keys/UUIDs - Based on user selection get customer object from
.../api/{business UUID}/ec37c11e-2b67-49c6-8a58-6eccb7dd75ee/{customer UUID}
If you are using Excel PowerQuery or Power BI to extract the data, you can look into this post as a start and build up from there: