Customization of Landing zone : AWS Landing Zone Accelerator is failing while creating pipe line.

Did anyone use the AWS accelerator successfully to build the pipeline?

I am trying to customize the landzing zone using AWS accelerator, used Control Tower for prerequisites.

I am following steps mentioned at below link.

https://github.com/awslabs/landing-zone-accelerator-on-aws

But getting issue while AWSAccelerator-Pipeline pipe line execution, it passed for AWSAccelerator-Installer tough.

What can be the root cause as per our understanding it is failing in validation and considering all the OUs in the root not sure why it is considering all the OUs even if they are not controlled (registered) with Control Tower.

Error message.

AWSAccelerator-PrepareStack-1723*****-ap-southeast-2 | 55/98 | 2:11:58 PM | CREATE_IN_PROGRESS   | Custom::ValidateEnvironmentConfig                  | ValidateEnvironmentConfig/Resource/Default (ValidateEnvironmentConfigB40B464F) Resource creation Initiated
AWSAccelerator-PrepareStack-1723****-ap-southeast-2 | 55/98 | 2:11:58 PM | CREATE_FAILED        | Custom::ValidateEnvironmentConfig                  | ValidateEnvironmentConfig/Resource/Default (ValidateEnvironmentConfigB40B464F) Received response status [FAILED] from custom resource. Message returned: Error: Organizational Unit 'Projects OU' with id of 'ou-51e8-*****' was not found in the organization configuration.,Organizational Unit 'Projects OU/Temp2' with id of 'ou-51e8-****' was not found in the organization configuration.,Organizational Unit 'ctmarch16-ou1' with id of 'ou-51e8-*****' was not found in the organization configuration.,Organizational Unit 'QA Demo' with id of 'ou-51e8-****' was not found in the organization configuration.,Organizational Unit 'Org-UX' with id of 'ou-51e8-*****' was not found in the organization configuration.,Organizational Unit 'Prod OU2' with id of 'ou-51e8-*******' was not found in the organization configuration.,Organizational Unit 'Prod OU2/Temp' with id of 'ou-51e8-****** was not found in the organization configuration.