@Anonymous Hello and welcome to Microsoft Q&A.
As I understand you are using Data Factory pipelines to make calls to "Microsoft Partner" api.
From what I can see, the "number of queries exceeded" error is coming from the Microsoft Partner api, not an error of Data Factory.
I have never looked at Microsoft Partner Center before. From what I gather from documentation, and your error, here is what I suspect is happening.
From the pipeline, you are calling the "create report query" which creates a template. Then you are calling the "create report" which schedules the query to run. After this pipeline running enough times, you hit some limit (I haven't found document on that). After hitting this limit, you get the reported error.
When you tried to delete the "scheduledqueries", you tried to delete the template underlying a scheduled report. A report needs a query in order to run.
You need to delete the report first, then you can delete the query. Then you will have a free slot for new queries.
This is my best guess at what is happening.