Error coming while submitting Purchase Order

Summary:

Error coming while submitting Purchase Order

Content (please ensure you mask any confidential information):

Getting the below error :

The requester isn't valid. Verify that the requester name and email match the ones entered in the Oracle Human Capital Management Cloud, and that the correct name format is used. For example, use John Smith instead of Smith, John.

Version (include the version you are using, if applicable):

25C

Code Snippet (add any code snippets that support your topic, if applicable):