Hello,
The cardinality between a bucket and a product is 0.1 in the release 17.5 of the API. So it is not mandatory to have a link to the product if you want.
But, as first-line, the Usage Consumption API is used to provide ongoing information about usages related to any subscribed network products.
There is another API to TMF654 Prepay Balance Management which maybe could be used for your needs.
Best regards,
Sophie Bouleau
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Sophie BOULEAU
Orange
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