Unable to share a data pipeline

Hi. Probably having access to the pipeline and semantic model means you can modify it but, in order to run it the user need access to the semantic model connections. Make sure the user has access to the semantic model connections too. You can find the connections menu and the gateway together. If it's a cloud source, you might need to share it like this: https://learn.microsoft.com/en-us/power-bi/connect-data/service-create-share-cloud-data-sources

If they can run the semantic model manually they will be able to do it in the pipeline.

I hope that helps,