Promotion Request get automatically Terminated, even if approver approve it, it get rejected automatically.

There is a conditional in the workflow template that confirms that the data can be promoted - look at the executed workflow process and see if that conditional is gray (was executed) and the path to Reject was via that conditional. If true, then the reason is the Affected Objects, not the approval tasks.

Are you promoting advanced configurables?

Because this comment can be found within the express of that robot.

If any of the promotion targets are Advanced Configurable Generics the

baseline used during collection needs to be set on the generic as the

default baseline to properly support Options and Variants. If none of

the promotion targets are Advanced Configurable Generics, this method will

simply return.