How To Fix B1878 - All the BAPI table parameters in the hierarchy have already been used.

B1878 - Overview

• Message type: E = Error

• Message class: B1 - ALE group messages

• Message number: 878

• Message text: All the BAPI table parameters in the hierarchy have already been used.

What causes this issue?

All the table parameters in the hierarchy have already been used for
the BAPI (&v1&, &v2&). A table parameter can only be used once within a
hierarchy.

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message B1878 - All the BAPI table parameters in the hierarchy have already been used. ?

  The SAP error message B1878, which states "All the BAPI table parameters in the hierarchy have already been used," typically occurs when you are working with BAPIs (Business Application Programming Interfaces) that involve table parameters. This error indicates that the BAPI you are trying to call has a limitation on how many times you can use the table parameters in a single call.
  
  Cause:
  
  Multiple Table Parameters: The BAPI you are using may have multiple table parameters, and you are trying to pass more than one instance of a table parameter that is not allowed.
  Hierarchy Limitations: The BAPI may have a specific hierarchy or structure that restricts the use of certain table parameters. If you have already used a table parameter in a certain context, you cannot use it again in the same call.
  Incorrect Mapping: If you are mapping your data incorrectly or trying to pass data in a way that does