How To Fix AD_MPN_RBA_MESS030 - Structure node &1 cannot be entered for material &2, item &3

SAP Error Message - Details

• Message type: E = Error

• Message class: AD_MPN_RBA_MESS - Rules Based ATP und Config Control

• Message number: 030

• Message text: Structure node &1 cannot be entered for material &2, item &3

What causes this issue?

You have manually entered an iPPE structure node but this is not allowed
for this availability check group according to your specific Customizing
settings. The manually entered structure node was deleted automatically
and if possible will be determined by the master part list.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.