Unable to Add Users to FCCS IDCS Groups Using API’s

Summary:

In IAM the IDCS groups have already been created and those are in use for a long time. Recently we tried to write or fetch from IDCS groups on the application but failed as no Oracle APIs are available for these operations, hence we tried to add the Users to these IDCS groups using API’s but getting the error as no such group exists. However, if we are trying to add the users directly to the pre-defined roles, it is successful.

Please let us know on the below points.

Is it possible to add users to IDCS groups using APIs?