Migrating projects from Bitbucket and Gitlab. But need both at the same time

We are looking to migrate our core repositories from bitbucket to Gitlab but we are not doing in a bigbang way rather we are doing project by project

What is the recommended approach seems like an organization is bounded to the platform.

Please give a way to proceed this is a bit urgent.

Hello Emerson,

Sorry for a late response.

but we are not doing in a bigbang way

I am not sure what do you mean by doing it in a bigbang way?

If I understood correctly, you would like to change your organisation binding from BitBucket to Gitlab first? And only after that you would like to migrate your projects one by one from BitBucket to Gitlab? Do you wish to keep the history of the projects analysis on SonarCloud side during this migration?