How To Fix FD136 - Several postings created; tax may be incorrect; check session

FD136 - Overview

• Message type: E = Error

• Message class: FD - EDI Messages in FI

• Message number: 136

• Message text: Several postings created; tax may be incorrect; check session

What causes this issue?

The invoice is so large that several documents had to be created.
Since however the taxes are posted as a total, they could not be
divided up between the individual documents. This is only possible if
the amounts of the invoice line items are transferred including the
tax.

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?

Please have a look at the last invoice in the BDC session. You can
find the tax posting here. Divide the tax amount up between the
individual partial invoices when posting the documents (the balance
of the partial invoices generally corresponds to the tax amount).

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FD136 - Several postings created; tax may be incorrect; check session ?

  The SAP error message FD136 ("Several postings created; tax may be incorrect; check session") typically occurs during the processing of financial documents, particularly in the context of tax calculations and postings. This error indicates that multiple postings have been created in a session, and there is a potential issue with the tax calculations that need to be verified.
  
  Cause:
  
  Multiple Postings: The error arises when the system detects that multiple postings have been created in a single session, which can lead to inconsistencies in tax calculations.
  Tax 
  Configuration Issues: There may be issues with the tax configuration in the system, such as incorrect tax codes, rates, or settings that affect how tax is calculated.
  Document Splitting: If document splitting is enabled, it may lead to multiple line items being created, which can trigger this error if the tax amounts do not match.
  Data Entry Errors: Incorrect data entry during the posting process can also lead