Zendesk Sell REST API '/pipelines' endpoint does not return all pipelines.

Hey!  
The cause of this is likely one of 2 reasons.  

1. Pagination:

• Check if the API responses are paginated. If the /pipelines endpoint paginates its results, you might be receiving only a subset of pipelines in each response. Make sure to paginate through all the pages of results to retrieve all pipelines.

2. Pipeline Limitations:

• By default, a Zendesk Sell account has one sales pipeline. To track multiple unique sales processes, you can create additional pipelines.
• The number of pipelines you can add depends on the type of Sell plan you are on. You can find out how many pipelines your plan allows by checking the Product limits in Sell.
• Ensure that you are using one of the two highest Sell plans to add a new pipeline.

It might be worth having that user check their account/reach out to Support to ensure they have the right sell plan to accomplish your goals.