How To Fix M8001 - G/L account & only postable automatically

M8001 - Overview

• Message type: E = Error

• Message class: M8 - Invoice Verification/Valuation

• Message number: 001

• Message text: G/L account & only postable automatically

What causes this issue?

You have entered a G/L account to which only automatic postings may be
made.

How to fix this error?

Change the specified G/L account number.

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.

M8001 - Details

• The SAP error message M8001 typically indicates that there is an issue with the General Ledger (G/L) account configuration or the posting process in the system. The message "G/L account & only postable automatically" suggests that the G/L account you are trying to use is set up in a way that it can only be posted to automatically, and manual postings are not allowed.
  
  Cause:
  
  Account Configuration: The G/L account may be configured as a "statistical" account or as an account that only allows automatic postings (e.g., for certain types of transactions like accruals or provisions).
  Posting Type: The type of posting you are trying to perform (manual vs. automatic) may not be compatible with the settings of the G/L account.
  Account Type: The account may be set up for specific transaction types that do not allow manual entries.
  
  
  Solution:
  
  
  Check G/L Account Settings:
  
  Go to the G/L account master data (transaction code FS00).
  Verify the account type