How To Fix ME661 - Use a scheduling agreement without release documentation

ME661 - Overview

• Message type: E = Error

• Message class: ME - Purchasing: General Messages

• Message number: 661

• Message text: Use a scheduling agreement without release documentation

What causes this issue?

You want to create a scheduling agreement with release documentation
(document type <LB>LPA</>) in the standard system.
You have set the <LS>Ext. planning</> field for this scheduling
agreement in such a way that the planning and release generation are to
occur in the <LS>Advanced Planner and Optimizer</> (APO).

System Response

This combination rules itself out since the release documentation can be
displayed either in the standard system or in the APO system:
If planning, release generation and release documentation are to occur
in <ZH>APO</> (<LS>Ext. planning</> <LB>1</>), use document type <LB>LP
</>.
If planning, release generation and release documentation are to occur
in <ZH>the standard system</> (<LS>Ext. planning</> <LB>_</>), use
document type <LB>LPA</>.

How to fix this error?

Check your entries and use a different document type, if necessary (in
other words, a scheduling agreement without release documentation).

Error message extract from SAP system. Copyright SAP SE.

ME661 - Details

• The SAP error message ME661 ("Use a scheduling agreement without release documentation") typically occurs when you are trying to create or process a purchase order or a scheduling agreement that is not set up correctly in the system. This error indicates that the system expects a scheduling agreement that does not require release documentation, but the current configuration or the document type being used does not meet this requirement.
  
  Cause:
  
  Incorrect Document Type: The document type you are using may be configured to require release documentation, but you are trying to use it in a context where it should not.
  Scheduling Agreement Configuration: The scheduling agreement may be set up incorrectly in the system, leading to a mismatch between the expected and actual behavior.
  User Role/Authorization Issues: The user may not have the necessary authorizations to create or modify scheduling agreements without release documentation.
  System Settings: The system settings for the purchasing organization or plant