How to restrict supplier in the supplies and demand table in supply planning based on ASL?

Summary: How to restrict supplier in the supplies and demand table in supply planning based on ASL

Content (please ensure you mask any confidential information): Open supplies and demands table in supply planning. Open planned order for buy item and edit to update supplier. It showing all the list of suppliers instead of ASL. How to restrict supplier in the supplies and demand table in supply planning based on ASL?

Version (include the version you are using, if applicable): 23D

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