Hi Gopi,
I have found out the issue and what you explained is not the case.
This error is not because of the mapping or anything. this kind of error occurred when you enable HSM in the Gateway and your mapping bundle has certificate or private keys in it. Since HSM is enabled thus you will not be able to update or create new key and hence GMU throw this error. This id shows in the error msg specify
id=00000000000000000000000000000002 --> is for software HSM Keystore ID.
id=00000000000000000000000000000004 --> is for Hardware HSM KeyStore ID.
hope this will help others as well.
Thanks & Regards,
Grajesh Chandra