Guidance on usage of MultiGAAP dimension for custom member addition

Summary:

We want to enable custom dimension & use CBCR also. As this is not possible to enable together - we want to use the MultiGAAP dimension to create custom members, want your guidance on this solution.

Content (please ensure you mask any confidential information):

We are implementing TRCS application for a customer who has a requirement to add a custom dimension. We noticed that we can enable either CBCR or the Custom dimension feature. However, the client has CBCR requirements too.

We are looking for your guidance to accommodate the Multi-GAAP dimension to add additional members supporting account data. And the requirement would be to add 50+ members. Let us know if this will be a good solution or will have any impact on any unforeseen Tax computation rules.