How To Fix VLBAPI051 - &1 in SENDER_METHOD field is not allowed

VLBAPI051 - Overview

• Message type: E = Error

• Message class: VLBAPI - Output Texts for Delivery BAPIs

• Message number: 051

• Message text: &1 in SENDER_METHOD field is not allowed

What causes this issue?

For the SENDER_METHOD field, only the values <LB>Blank</> (posting of a
goods receipt) and <LB>GRPD</> (posting of a partial goods receipt) are
allowed. If you enter a different value, the processing of the IDoc is
cancelled. For more information, see the documentation for
<ds:fu.BAPI_INB_DELIVERY_CONFIRM_DEC> BAPI for Inbound Delivery
Verification from a Decentralized System</>.

System Response

The processing of the IDOC is cancelled.

How to fix this error?

Enter a valid value in the SENDER_METHOD field.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

VLBAPI051 - Details

• The SAP error message VLBAPI051 indicates that there is an issue with the SENDER_METHOD field in the context of a specific API or function module related to the handling of logistics or sales documents. This error typically arises when the value provided for the SENDER_METHOD field is not valid or not allowed in the current context.
  
  Cause:
  
  Invalid Value: The value assigned to the SENDER_METHOD field does not match the expected values defined in the system. This could be due to a typo or an incorrect configuration.
  
  Configuration Issues: The system may not be properly configured to accept the method being used. This could be due to missing or incorrect settings in the relevant customizing transactions.
  Business Logic Restrictions: Certain business processes may restrict the use of specific sender methods based on the document type or other criteria.
  
  
  Solution:
  
  Check the Value: Verify the value being passed to the SENDER_METHOD field. Ensure that it is one