How to create a workflow without fail?

Which version are you using?

With a newer version of OneIM, you have two different options for your use-case. You can either use fallback approvers or the chief-approval team.

https://support.oneidentity.com/de-de/technical-documents/identity-manager/8.0.1/it-shop-administration-guide/34#TOPIC-916333

https://support.oneidentity.com/de-de/technical-documents/identity-manager/8.0.1/it-shop-administration-guide/35#TOPIC-916336

we have OIM 8.0.1. But we need the decision without approving instead a regular approver (such it is in case with fallback approver). As a fallback approver we want to have opportunity to change workflow for example, and after that return the request to the regular approver.

I am still not understanding why you see changing the approval workflow on the fly as a normal business case.

But what you could do to solve your use case - when it is all about assigning a different approver in cases where no approver can be determined - is to combine the fallback approvers with the flag, approvals can be delegated. In that case, the fallback approvers do not need to approve but can route the approval to the appropriate approver without changing the workflow.

Markus, thank you. I think it applies for my case.

Markus, thank you. I think it applies for my case.