AWS Managed Grafana primary account switch as a organization member account

Hi, I have few aws accounts now want to join another OU. One of them is a Grafana management account. But if I change all my accounts under a new OU, as shown in the figure below,

Are there any effects of Grafana management account access to data sources in other accounts? If it is affected, how can the Grafana management account access data sources in other accounts?