Another Dataset already exists with external label

A Data Studio user had the following challenge/question that might be relevant for other community members.

I'm getting the above error ('Another Dataset already exists with external label') when trying to synchronize a dataset into an environment. I found the dataset in question and deleted it from that space where it's not needed. I used the API to get all datasets in this environment and searched through the external labels to make sure it's not there ... it isn't .. but still I'm getting the above error.  

Any advice apart from changing the external label?  

thank you

Best Answer