An Azure networking service that is used to provision private networks and optionally to connect to on-premises datacenters.
Hello @Surendra Yadav,
Thanks for reaching out to Microsoft Q&A.
It seems like you’re having trouble creating an IPAM Child Pool in your Azure Network Manager specifically in South Africa.
I tested the same configuration in my environment and was able to successfully create the IPAM child pool in the South Africa North region without any issues.
IPAM feature is not available in the South Africa West.
Reference document: https://learn.microsoft.com/en-us/azure/virtual-network-manager/how-to-manage-ip-addresses-network-manager
Please refer to the below screenshots
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