Hi Aayush Suresh Jain ,
Thankyou for using Microsoft Q&A platform and thanks for posting your question here. As I understand your query, you are trying to rename a pipeline in your synapse workspace and are facing error while publishing the changes . Please let me know if that is not the case.
In case your Synapse workspace is GIT configured, making changes directly from the collaboration branch is not recommended. You should create a new local branch, and rename the pipeline and then raise the PR to merge the changes into the collaboration branch.
You can try the following way in case directly changing pipeline name is not working:
Clone the pipeline and provide the desired name for the new pipeline and then delete the older pipeline and merge the changes .
Hope it helps. Kindly accept the answer if it helped by clicking on Accept answer
button. Thankyou