Error in individual BAPIs or precommit: posting not possible

What causes this issue?

In the current LUW (Logical Unit of Work) at least one of the BAPIs
listed below or the BAPI "BAPI_PS_PRECOMMIT" has finished with an
error.
BAPI,,Method
BAPI_BUS2001_CREATE,,ProjectDefinitionPI.CreateSingle
BAPI_BUS2001_CHANGE,,ProjectDefinitionPI.Change
BAPI_BUS2001_DELETE,,ProjectDefinitionPI.Delete
BAPI_BUS2001_SET_STATUS,,ProjectDefinitionPI.SetStatus
BAPI_BUS2054_CREATE_MULTI,,WBSPI.CreateMultiple
BAPI_BUS2054_CHANGE_MULTI,,WBSPI.ChangeMultiple
BAPI_BUS2054_DELETE_MULTI,,WBSPI.DeleteMultiple
BAPI_BUS2001_SET_STATUS,,WBSPI.SetStatus
BAPI_BUS2002_CREATE,,NetworkPI.CreateFromData
BAPI_BUS2002_CHANGE,,NetworkPI.Change
BAPI_BUS2002_DELETE,,NetworkPI.Delete
BAPI_BUS2002_ACT_CREATE_MULTI,,NetworkPI.ActCreateMultiple
BAPI_BUS2002_ACT_CHANGE_MULTI,,NetworkPI.ActChangeMultiple
BAPI_BUS2002_ACT_DELETE_MULTI,,NetworkPI.ActDeleteMultiple
BAPI_BUS2002_ACTELEM_CREATE_M,,NetworkPI.ActElemCreateMultiple
BAPI_BUS2002_ACTELEM_CHANGE_M,,NetworkPI.ActElemChangeMultiple
BAPI_BUS2002_ACTELEM_DELETE_M,,NetworkPI.ActElemDeleteMultiple
BAPI_BUS2002_SET_STATUS,,NetworkPI.SetStatus

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

If an error has occurred in at least one individual BAPI and despite
this you call BAPI "BAPI_PS_PRECOMMIT", this message is issued with
message type I (information).
If an error has occurred in at least one individual BAPI and in BAPI
"BAPI_PS_PRECOMMIT", but despite this you carry out a COMMIT WORK (for
example, using BAPI "BAPI_TRANSACTION_COMMIT"), the current program is
terminated and this message is issued with message type X (exit).
This is necessary to ensure data consistency for all objects created,
changed, and/or deleted in this LUW.
Note that the current LUW was not successfully closed and that no new
LUW can be started in this status.

System Response

The precommit is not executed, or the COMMIT WORK leads to a
termination.

How to fix this error?

Change the calls of the individual BAPIs so that no errors occur during
the individual checks or during the subsequent overall check.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.