How To Fix O1637 - An exchange type is required for all LIA postings.

O1637 - Overview

• Message type: E = Error

• Message class: O1 - IS-Oil : Message pool exchanges

• Message number: 637

• Message text: An exchange type is required for all LIA postings.

What causes this issue?

Exchange type has not been entered.

System Response

If you enter a valid exchange number, the exchange type is
automatically defaulted. However, if an exchange number is not required
(based on LIA doc. type) and has not been entered, then it is defaulted
to 'LIA' and an exchange type must be entered.

How to fix this error?

Enter a valid exchange type.

Error message extract from SAP system. Copyright SAP SE.

O1637 - Details

• The SAP error message O1637, "An exchange type is required for all LIA postings," typically occurs in the context of the Logistics Invoice Verification (LIV) process, particularly when dealing with foreign currency transactions. This error indicates that the system requires an exchange type to be specified for the Local Invoice Adjustment (LIA) postings.
  
  Cause:
  The error is usually caused by one of the following reasons:
  
  Missing Exchange Type: The exchange type is not specified in the document or transaction that is being processed.
  
  Configuration Issues: The system may not be properly configured to handle exchange types for the specific transaction or document type.
  Currency Settings: There may be issues with the currency settings in the master data or transaction data.
  
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Specify Exchange Type:
  
  Ensure that the exchange type is specified in the document. This can usually be done in the invoice or adjustment document where the currency is